iPhone Firmware 2.2 Beta 2: Google Street-View Enabled + Line-in Audio!
MacRumor'd yesterday and confirmed today, Apple has indeed released iPhone firmware 2.2, beta 2 to "select developers".
Google Street View, previously reported, is now enabled, and new finds seem to include SDK support for line-in audio accessories.
Anything else? We'll know when the coders get through digging!