I recently obtained and started using the HTC's MTeoR, one of the first devices to be sold under the HTC brand.
As this had 3G, and was very slim, I thought this was the Windows Mobile smartphone I had been waiting for. In almost all respects it was. I think this is my favourite smartphone form factor so far. The buttons are easy to use, the screen clear, and I like the fact that it has a jog wheel on the side. (Although I would have preferred it on the right, not the left) The external audio speaker wasn't as good as the speaker on the I-mate SP5, but was usable, and the joystick was much better than any I'd used before.
Unfortunatley, a couple of things let it down. The battery life is poor. Even compared to other Windows Mobile 5 smartphones it doesn't hold up, I had to charge it twice daily, once in the morning, and once again at night to keep it from turning off. I tested another MTeoR device and had the same issues.
Having 3G on any small mobile device will lead to power being an issue, but even so, it was worse that I expected. I turned off up to date server activesync and bluetooth, but this didn't seem to help much.
Also, why did they remove the video calling? If you pay the extra cost of 3G device, surely you'd want all the bells and whistles? Something else I would of liked to see is an audiojack. I guess HTC believe that we'll all be using bluetooth if we want to charge the device while talking on it in the car or listening to music.
A colleague of mine disabled 3G on his SIM card, and this seemed to improve his battery life while the device only used GPRS.
In short, this would be my device of choice if the power could last a bit longer.
Neil