Even as we marvel at the HTC Touch Diamond's gorgeous VGA display, let's not forget that 640 x 480 resolution (buried within the larger context of a monster spec sheet, no less) is old hat for some Windows Mobile devices. i-mate's Ultimate line has been reppin' the high res displays for a while now, starting with the 6150 and 8150 models that were announced well over a year ago; more recently, the 9502 was added, offering shoppers a grand total of three distinct form factors from which to choose plus a more traditional QVGA setup with the 8502. Hate on Windows Mobile all you want, but you have to admit, it's hard to find this kind of hardware diversity with any other platform out there.

We just had an opportunity to play with all four models side by side -- an especially rare opportunity, considering that neither the 8502 nor 9502 are officially being sold in the US (despite their support for HSDPA 850 / 1900). Follow the break for some quick impressions with each of the fearsome foursome.

On paper, the Ultimate 8502 and 9502 from i-mate rock specs that rest at or near the pinnacle of what's available from a Windows Mobile device today: HSUPA, TV out, integrated GPS, QWERTY, and in the case of the 9502, a true VGA touchscreen. While it's historically not been terribly easy to track down i-mate hardware in the States, one thing that might make it just a little bit easier to do so is an honest to goodness FCC approval, and that's what we have here laid out before our very eyes. In this case, it's the 8502 that's been approved under manufacturer Mobinnova's name; we haven't spotted the 9502 yet, so it's probably only the form factor purists and traditionalists that are getting excited about this one. We can almost feel the stupid-fast upload speeds from here!

Not only has Telstra secured exclusive rights to i-mate's freshly minted 8502 and 9502 Windows Mobile superphones in Australia -- it turns out they'll also be the very first carrier to launch 'em anywhere in the world when they hit shelves early next month. The carrier has historically been an excellent customer of i-mate's, bringing a grand total of ten devices to its airwaves so far in a five-year deal. Lucky Aussies will see the 8502 landing for $999 AUD (about $898) while the Sidekick 9502 drops for a whopping $1099 AUD (about $988).

Those two rather dashing new models in i-mate's off-again, on-again Ultimate line that we peeped all the way back at CTIA last fall are finally official. The 9502, undoubtedly the more interesting of the pair, is almost Sidekick-ish in its design, featuring a VGA touchscreen that slides to the side to reveal a full QWERTY keyboard. The 8502 meanwhile makes do with a more traditional form factor, sticking the QWERTY pad below the 2.6 inch QVGA display up front. Both models feature HSPA (yes, both HSDPA and HSUPA), TV out, and integrated GPS, hence earning their keep in the thin-but-growing Ultimate stable. Still no word on release or pricing, but since they've both been kicking around since CTIA, we imagine we'll see 'em in the pipe before too long.

We saw these fellas announced this morning so thought it only reasonable to get down to i-mate's booth here at CTIA and get some shots of the 8502 and 9502. First thing we noticed about these handsets was the top shelf build quality and high-end heft factor -- if you're not feeling it both of these look and feel like a million bucks. The booth was positively swarming with curious onlookers peeking at the video out demonstration that these two were putting on and to their credit, both handsets looked grand on big plasma screens. Check the gallery for some more i-mate candy.