Let the hive mind of Engadget get that for you.
"I'm in the market for a new phone and money isn't a limitation. I'm also not partial to any particular US carrier, but here are some of the features I'd like to have: WiFi, GPS, good coverage in lots of places, push Gmail (a must!), physical keyboard (a must!), a touchscreen, decent battery life and a relatively slim body. And please, nothing that has a fruit logo on it. No offense to the fruit fans, though. Thanks!"
OH and its 4/21 has there been an update on this yet?
Personally I think it could very well be a "New Plans, 3G expansion, Cupcake to go along with our New Device" I think that's the only way they're planning this event if its not soley based around an individual device.