WMWifiRouter

WMWifiRouter instantly turns your wifi enabled smartphone* into a wireless internet hotspot. Now you can use your laptop and any other device with wifi to get online and surf, email, instant message, and anything else you normally use the internet for!
* check for requirements below

To use WMWifiRouter you need the following on your mobile device*:
•Windows Mobile 5 AKU 3.3 or newer or Windows Mobile 6
•Both a wifi and a cellular data connection
•An installed and working version of Internet Sharing**
•15 MB of free device memory
* Additional requirements may apply.
** Some providers remove Internet Sharing from their branded devices.

http://www.wmwifirouter.com/