Sony has just launched a new line of phones dubbed the XPERIA, starting with the XPERIA X1. Looking like it's aimed directly at phones such as the Sidekick and Ocean, it's got a full QWERTY keyboard that slides out from underneath the phone.
In addition, it has a 3-inch touchscreen, WiFi connectivity, 400MB of storage onboard, and microSD support. It runs on a modified version of Windows Mobile, so how that's implemented should make or break this guy. It should be able to run on pretty much every network both here in the US and in Europe, so look for it to hit your local carriers sometime this summer.