Yes, I have one now. I will try to answer any questions you have about it. I'm very pleased with it so far. One tiny worry is that the battery seems to get quite warm. I think it correlates with downloading data. That's the only thing ... so far.
Applications:
Right now, apart from the pre loaded apps it's running
AgendaOne, CodeWallet, Newsbreak, SK tools, Memmaid, Schapps Advanced Config, CoPilot, Opera Mini, Live Search, Mobipocket, Spb Backup, Spb Finance. All seem to be running Ok, but it's early days! I've synced around 3gb of music, via wm player and that went OK, except that no album art appears in the HTC music player (yes, I did obtain them legally), the album art appears in WM player on the device.
Mobipocket, Memmaid, Finance, SK tools, Newsbreak, CoPilot and Live Search are all installed to 'Internal Memory' ther rest to main memory (obviously!)
After that lot I have the following memory left:
Storage: 39.12 mb
Program: 40.98 mb
Battery Life:
It's not the best I've ever had (that was the Touch)
We never expected it to be superb, but it's OK really.
Push email on from 7.30am to 11.30 pm
Newsbreak refreshing every 2 hours with about 25 feeds (no podcasts)
Weather on manual refresh (probably every 2-3 hours for 2 cities)
At the end of the day I probably have around 2 of the 10 bars left, so around 20%, having made probably 10 mins of phonecalls and sent around 30 texts, and read a book for an hour or so.
Tonight I have limited it to GSM band to see how much difference that makes.
I think the main battery indicator is a bit strange. it goes from 10 bars to 8 very quicly, but then seems to slow down a lot. the indicator on the top bar of the home screen goes down quite quickly too, but when you then look at the main indicator, there's still plenty left. Weird, but not really a problem.
Lagging issue:
There is a small lag in the Touchflo 3D home plug-in. This is easily remedied if you want to by applying a couple of tweaks from:
[UPDATED 08/06] HTC Diamond Tweak List - xda-developers
I tried these and they really work amazingly well. I personally didn't find that they had an effect on battery life, but they do decrease memory. I've taken them off mine for the moment as I prefer the memory, but they do work with no adverse effects I could find.
Device does not wake on receipt of sms:
I did use the tweak in there which wakes your device when you get a text.
Screen turns off very soon during a call:
Some people are having an issue with the fact that it's very quick indeed. I don't really mind this, you only have to press the power button to get it back on again, but I think there's a tweak in there for that too.
The soft reset button is in a strange place!
You take the stylus out and there is a small hole in there, coloured red and that's the reset button.
I don't know what else to tell you. I think this is NOT a machine for 'power users', the new interface means the average user could go for days without seeing windows mobile, but I know there are peeps out there who won't like the less immediate feel about the device.
Anyways, if you have questions I'll try and answer as best I can. Remember I'm not a techie!