I've had lots of experiences with the HTC Touch Diamond and think it is a wonderful device for those who like touch screen devices, but I still prefer to have a hardware keyboard. HTC and Sprint just officially announced the launch of the HTC Touch Pro that will be available in retailers starting next week for US$299.99 with a 2-year committment, qualified plan, and US$100 mail-in rebate. The HTC Touch Pro adds a slider QWERTY keyboard with 5 full rows for accurate text entry.
I actually haven't had a chance to really play with one of these yet so I cannot comment on the usability of the keyboard, but hope to get a review unit soon and write about my experiences here. The HTC Touch Pro still makes use of the TouchFLO 3D interface and adds a microSD card slot instead of an integrated flash drive. It supports Sprint's fast EV-DO Rev. A network, has integrated WiFi and Bluetooth radios, has an integrated GPS receiver, comes with 512MB ROM and 288MB RAM powered by a 528MHz processor, and has a decent capacity 1340 mAh battery.