I freely admit, right at the start of this post, that I switch cell phones too often. A lot of this is because I try to do a lot with my mobile phone, mostly mail and web based. And I want the thing to work well with my Mac, and to be a phone: I don't really want a two-inch-thick "communication controller" on a belthook.
At the same time, I don't want a tiny screen or a crappy browser, and I need a decent way to input text.
I've had generally good luck with the recent generation Windows Mobile "smartphone" devices (like the T-Mobile Dash, aka the HTC Excalibur), but the version of Internet Explorer in them is pretty limited, and replying to support questions can be frustrating because of those limitations.
Some time ago, I'd purchased a Sony Ericsson M600i, which looked like it was going to be a good'un: good size, design, keyboard and capabilities. Unfortunately, at least 3/4 of a year ago, it seriously sucked. The design is good, but the version of UIQ3 it originally shipped with was buggy beyond words: the email program crashed constantly, disconnected from email, etc. The browser was capable, but it crashed all the time, too. And, to top it off, the thing wouldn't sync with the Mac.
It didn't last long... until I took it back out of the box last week.
After applying Sony Ericsson's recent software update (R9F011 for the curious), UIQ3 has taken a huge step into reliabilityland. All of a sudden, the applications are no longer crashing. Mail, while limited by some boneheaded design choices, works. The web browser has been updated, and it's fast and capable: it even renders some relatively complex stuff on the Shirt Pocket site.
On top of that, Kerio Mailserver has finally implemented support for the M600i's OTA ActiveSync (Exchange) support, so events, mail, contacts, etc are pushed to the device automatically. Combined with a new iSync plugin, the thing works with my Mac pretty well: transparent two-way sync is awfully compelling.
Not phone nirvana, but a nice set of updates combining to deliver a greatly improved experience. It'll be interesting to see how the iPhone measures up. If the "Push" support is only for Yahoo mail (I'm hoping that it properly supports IMAP IDLE), it doesn't do OTA sync, and it doesn't support a vibrant 3rd party community (that gives us Apple Design Award-winning products like Salling Clicker), its cool touchscreen and attractive UI won't really make up for its lack of capability.
Demo vs. reality -- always fun. We'll have to see in June.