My previous post "WiFi Hots(Honey)pots Go Mobile" (http://blog.airtightnetworks.com/wireless-security-mobile-hotspot/) talked about Palm Pre/Pixi Plus going the hot(honey)pot way.
SIMFI is equally cool - it can convert your cell phone into a hotspot. SIMFI is of the size of a SIM card and has WLAN modem built into it. It can be pretty much used with any phone. Check out http://www.techchee.com/2010/02/13/simfi-wifi-integrated-sim-card-turns-your-cellphone-into-a-wifi-hspa-router/ .
I am looking forward to get my hands onto one of these.
So, looks people don't need to carry APs anymore to mess around with enterprise security :)