The ground and transportation office regularly updates the contact information  as well as number of vehicles for pedicab, taxicab, limousine, charter bus, and horse carriage companies.
You can find their updated document here:
http://www.ci.austin.tx.us/publicworks/downloads/limoadd_5.8.08.pdf
In it you will find that there are currently: (as of May 8, 2008)
93 pedicabs
669 taxicabs
17 horse drawn carriages
118 limos
54 airport shuttle vans
81 chartered […]

Pedicab Drivers in Austin are a hard working group of men and women. We literally work our asses off. As far as I can tell none of us are getting rich. While many are doing well enough to get by just pedicabbing 3 or 4 nights a week, there is one […]

I am glad to see that Pedicab drivers are getting more coverage and quotes in the local media.
This post take from the Austin American Statesman found here:
http://www.statesman.com/news/content/news/stories/local/01/01/0101firstnight.html

Third First Night is second to none
125,000 join carnival-like atmosphere downtown to greet 2008.
By Patrick George
AMERICAN-STATESMAN STAFF
Tuesday, January 01, 2008
How did Austin ring in the New Year? With rock […]

Thanks to the folks over at pedicabnews.com  for finding this video.  It has some great footage of Chalo, Sachee, and Jeremy’s pedal powered creations in action. (at 1 min 43 seconds.)

Austin’s pedicabs are expected to follow the rules and regulations laid out in the Austin City Code in Chapter 13 section 2.  Click the link below (rich text document) to see then, in full:

Austin City Code Chapter 13 Section 2 

In addition to relevant sections of the Austin City code, Austin pedicabs drivers are expected to […]

This article take from:December 27 2007 issue of the Austin Chronicle
Fun, Healthy, and Green. Pedicabs fill a self-propelled niche in Downtown transportBY SOFIA RESNICKAs what passes for winter in Central Texas finally arrived a couple of weeks ago, those who spend their weekend nights pedicabbing are breathing easier. It’s not just the farewell to […]

This article taken from the following page:
http://www.kxan.com/Global/story.asp?S=7479878&nav=menu73_10

Pedicab Drivers Seek Eased Restrictions

Where and when Austin pedicab drivers can operate may change next year.

Urban Transportation Commission member Carl Tepper told KXAN Austin News that they’re looking at lifting some of the restrictions the drivers face.

Current regulation states they can operate from 8 a.m. to 4 a.m., but […]

Pedicab drivers hope to expand past downtown

Video: http://www.kvue.com/video/index.html?nvid=200440&shu=1

The city of Austin is considering easing restrictions on pedicab drivers. The proposed changes include allowing pedicabs into new areas of town as well as adjusting their hours of operation. Right now pedicabs are restricted to the greater downtown area. The boundaries include MoPac to […]

It should be know that there are 10 , not 5 licensed pedicab companies in Austin as reported in the following article. See the list at the following link: http://www.ci.austin.tx.us/publicworks/downloads/limoadd.pdf (Look in the non-motorised section at the bottom of the page.)
This article take from:
http://austinist.com/2007/12/04/pedicabs.php

December 4, 2007
The Future of Pedicabs In Austin

The city’s Urban […]

This article taken from:
http://media.www.dailytexanonline.com/media/storage/paper410/news/2007/11/30/TopStories/City-Commission.Proposes.Changing.Pedicab.Restrictions-3125177-page2.shtml

City commission proposes changing pedicab restrictions
By Maya Srikrishnan

Ashley Mahaney, a studio art senior, sometimes makes enough money for a month’s rent in one night of pedicabbing.

But restrictions implemented by the city have made it difficult for Mahaney and her fellow pedicabbers to make a living.

“The city of Austin took away our privileges […]

This article take from:
http://www.kxan.com/Global/story.asp?S=7435638&nav=menu73_2

Pedicab Drivers Call Road Rules Bad For Business

They can get you around traffic in a hurry, and they’re a big part of the effort to keep Austin green.

Yet the city’s pedicab drivers say the road rules they’re expected to follow are bad for business.

There are more than 100 pedicab drivers in the […]

This article take from:
http://www.keyetv.com/content/news/topnews/story.aspx?content_id=10984cc9-5049-4587-befc-921970eaab8a
DayPortPlayer.newPlayer({articleID:”16208″,playerInstanceID:”1″,domain:”keye.dayport.com”,rootCategory:”79″,categoryID:”5″});
Pedicabs seek right to work during rush hour
Some pedicab drivers want to cruise downtown during rush hour and they have asked the urban transportation commission to make that happen.
But the Austin Public Works Department says that’s too dangerous.
A city ordinance put the brakes on pedicabs during the morning and evening rush […]

Article taken from:
http://www.kxan.com/Global/story.asp?S=7110531&nav=0s3d

Information Sought In Pedicab Hit-And-Run
Sep 21, 2007 02:40 PM

A pedicab worker injured in a hit-and-run is asking the public to help find the driver who hit him.

Investigators said a dark sports car rear-ended his cart on the Ann W. Richards Congress Avenue Bridge on Aug. 24. One of his passengers was unconscious for […]

Article taken from:
http://www.myfoxaustin.com/myfox/pages/News/Detail?contentId=4415263&version=1&locale=EN-US&layoutCode=TSTY&pageId=3.2.1
Injured Pedi-Cab Driver Works With Police to Find Runaway Driver
Created: Thursday, 20 Sep 2007, 5:24 PM CDT
AUSTIN — An Austin pedicab driver who was hit by a car is working with Austin Police to find the driver.
The driver and two passengers were injured in the crash that knocked the bike taxi […]

Article taken from:
http://www.statesman.com/news/content/news/stories/local/09/21/0921roundup.html

Help sought in pedicab wreck
Austin police are asking for the public’s help in finding the person who was driving a black sports car they say collided with a pedicab on the Ann Richards Congress Avenue Bridge last month, leaving one man critically injured.
Also, Red Bull North America, which was hosting an event in […]