In a recent interview with CNN, Sony's Senior Vice President Peter Dille revealed a few bits of info about the current situation of the PSP and its users, and maybe hints at what the future Playstation phone will bring to the table. "We do have a good relationship with Google." When speaking about the lack of a cell connection on the PSP holding back portable gaming, Dille said, "The PSP is a WiFi device, people are used to having connected devices." Also speaking about the current state of mobile gaming, Dille says that most games are just "time-killers, and gamers aren't satisfied with that." He does go on to say that for the PSP or future devices to be successful, the inclusion of cell connections is vital.
The current vision of the Playstation Network being easily accessible from multiple devices can't become a reality when the PSP is limited by WiFi only. "I dont think we will fully realize that vision with a WiFi device". So there you have it, WiFi is a great thing, but not always available. This of couse is always true of cell service, but when it comes to being fully wired anywhere and everywhere you go, the addition of the cell connection will open up this limitation to many more eager game consumers.