Best Phone For a Wi-Fi-Only Location?

bendodge writes "I am planning on heading to a university in a remote area with very poor cellular service (the only signal is spotty Verizon voice, no data). However, the entire campus is thoroughly blanketed in Wi-Fi. I am trying to find the best and most economical 'Wi-Fi phone' or else hack one together. Belkin/Netgear sell what is essentially a portable Skype device for $180. These folks recommend outfitting an iPod Touch with a mic and VoIP apps. I am looking for something that can make and receive calls to and from landlines with incoming call notification. What experiences have Slashdot readers had and what would you recommend?"

Get an iPhone 4.

[richy freeway]

Ideal for Wifi use, cos they don't work on the cell networks properly