Motorola working on WiFi cellphone you won't want to use

Be careful what you wish for: we've been bitching for months about how you still can't buy a cellphone with built-in WiFi, so you'd think that we'd be at least somewhat happy to hear that Avaya, Motorola, and Proxim are working together on an "enterprise phone" (yawn) that can make voice over WiFi calls when you're in the office and then automatically switch to cellular networks everywhere else. There's just one big catch: the phone is going to use WiFi's unloved middle child, 802.11a, rather than the more common 802.11b and 802.11g. Sure, there's a sort of good reason for doing this — that 802.11a uses a different frequency than 802.11b and 802.11g and so there won't be as much interference and can handle more simulataneous phone calls — but it kills the fun of having a WiFi phone, which is that you can make phone calls from Starbucks or Bryant Park, or where you can find the regular 802.11b kind of WiFi.