Sony Ericsson Xperia X2, with OLED touchscreen WVGA (800x480 pixels) and a 8.1 MP camera with 16x digital zoom. The camera also equipped with auto focus and image stabilizer..The phone sports a slider keyboard for data input.
Price is set at €600 (about $880) before the Carrier subsidies are kicked in.
Engadget had a hands on about the phone while ago and I think it could be counted as iPhone alternative. (We considered Xperia X1 to be a iPhone alternative a while ago.)
Business Mobile via engadget