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I’ve just taken the plunge and upgraded my HTC Wizard/O2 XDA MiniS to an HTC Kaiser/T-Mobile MDA Vario III.  I changed to T-mobile mainly beacuse of the ‘web n walk’ deals with their overall offer a better option than the competition, plus the added bonus that they don’t mind if the phone is used as a laptop modem (not tested yet).

There are hundreds of reviews around the web so I won’t bother doing that but will note some of my own thoughts, I find bullet point lists for this sort of thing work well:

•  The phone itself is a bit smaller than the previous one,  a testement if ever there was one to the fast moving world of modern technology, the new one packs in 3G,  GPS, faster processor and a tilting screen to boot where as the old one managed GPRS  at a push.
• The GPS is very fast to lock on, even inside buildings! It works very well with Google Maps although occasionally the software seems to forget to ask the GPS to update.  I’m awaiting a memory card before testing TomTom.
• The keyboard is actually slightly smaller than the  old one which is odd beacuse there appears to be space for it to be bigger. Its still perfectly usable although symbols have been moved around quite a bit, having had the Wizard for 23 months I was able to touchtype on it (thumbs only of course!) so this is quite an annoyance although I’m sure I’ll get used to it.
• The phone feels more solidly built, the mechanism for the tilt is metal so should be pretty hard wearing.
• The comms manager button is gone, this is a little annoying, I’m going to consider re-mapping the voice dialling button to do this. I’ve never quite understood the point in these voice dialling buttons, if I want hands free then I’ll use the button on my bluetooth headset to activate it, or else I’ll just use the keypad and dial the number normally.

The XDA Developer forums are as ever a fountain of useful knowledge for Windows Mobile smartphones and very much recommended. One of the forum members has produced a program called TrackMe, this is now being contributed to by other forums members. Its essentially a GPS Logger, it can record to either a local file or send data to a web application as a KML file.

I’m thinking of using this when I go to Cape Town in December to record my track and then use this to geotag my photos when I return. Obviously I’ll use the local file option as otherwise I’ll end up with horrendous roaming data charges! Hopefully the version with support for GPX will be released soon otherwise I’ll write a little converter myself. Then I need to tie this in with the photo exif data from my camera by matching the most recent gps log entry to the exif time stamp.

The contract has come up on my O2 XDA MiniS, its been a good phone to be honest although I wasn’t sure at first, Windows Mobile is not without its issues for me at least, MMS support is woefully poor (in WM5), the integration with Outlook while great for some is not perfect for me, but there are ways around this such as Gmobilesync for the calendar. All the same, the benefits delivered in terms of flexibility, availability of third party software such as Google Maps Mobile, and increased use of the device as a result make it worth while.

A short while ago the iPhone coverage couldnt be avoided, I’m just thankful its over now, every US blogger of note had themselves worked up into a frenzy over this thing (in another news Kleenex announced a record sales increase for the same period (sorry bad joke)). Me, I can’t see myself parting with that much money for a phone, if I had the money I’d could buy a nice big flat tv for that sort of cash. Additionally, having had the luxury of a full keyboard on my current hand set I can’t bring myself to part with it, I prefer the tactile feedback of a real thumb board to a virtual keyboard, whether it has an Apple symbol attached or not. Someone has been quick to conduct research to prove the value of this tactile feedback as well.

In the perfect world, a replacement handset would have 3G, Wifi, GPS, physical qwerty keyboard, touchscreen and 2 sim card slots so I can ditch the work phone. Closest I can find is the E-ten M700, which has almost everything except the 2 sim card slots. Its either that or the HTC Kaiser which as mentioned on my Google Maps post I have been assured should be released fairly soon on T-Mobile. They both have their positives, the HTC has a better camera, however styling, size and an improved GPS chipset (SiRFstar III) make the E-ten a winner for me, I have a decent camera already. I just need to find a network who’ll carry it now unless I go back on what I said earlier about paying for phones and cough up but its not cheap!

Update (12/11/2007): I bought the Kaiser, click here for the post.