A. Thanks for the message, and for watching the videos. UpStage is a pretty old model at this point, so you may have trouble finding a new one for sale. That said, texting is kind of a pain on it - the two-sided design means that you've got a nice big touchscreen on one side, and a small screen with a dialing keypad on the other. The keypad is much easier to dial/text on than the touchscreen, but the display on the keypad's side is so small that you can't see very much of your message. I also recall having to flip the phone over quite a bit when using it for messaging -- I haven't used an UpStage in quite some time now, but I do remember it not being very good for much besides calling and audio/video playback.
Rumor, on the other hand, is a great messaging phone. You'll lose out on the higher-end features like Web browsing and such, but it's solid, comfortable, and has a good QWERTY board. Rumor's display is small, but it's far better for texting than UpStage.