Samsung i900 aka Omnia is a Windows Mobile PocketPC that can get you up to 7.2 Mbps on HSDPA and storage of up to 32GB.

samsung i900

3.2 inches (240 x 400 pixels) with handwriting recognition
128 MB RAM, 256 MB ROM
624 MHz Marvell PXA312 processor
8 GB/16 GB internal memory
microSD (TransFlash), up to 16GB
HSDPA, 7.2 Mbps
Wi-Fi 802.11b/g
Bluetooth 2.0 with A2DP
USB 2.0
Microsoft Window Mobile 6.1 Professional
5 megapixel camera (2,592 х 1,944 pixels) with autofocus, image stabiliser, flash
built-in GPS receiver
FM Radio with RDS
TV Out
DivX/XviD/WMV/MP4 player
Optical Mouse/Touch Screen
Built-in Accelerometer
12.5mm thick.

Reports say that it will be available starting June 2008.