BargainPDA brings a
first-hand review of the T-Mobile Sidekick 2, aka Danger Hiptop 2, convergence device. The author's conclusion sounds promising:
The Sidekick 2 is a fun converged device with a lot to like. It's easy to use, has a great keyboard, the form factor is innovative and can keep you connected in various ways to your friends and family. It is not a good replacement for a PDA, unless all you demand of a PDA is the most basic of applications. At the price of $199.99 this device is actually a bargain for what you get. Compared to the Treo 650 or iPaq 6315 that cost well over $500, you get a device that performs the same core functions.
The bad: The operation system is neither PalmOS nor PocketPC, which means you can expect only a limited choice of available software.