I work for a gadget magazine, and the arrival of the P50 is a shocking event indeed in my country (it is sold by private importer, not BenQ). It has BT, Wi-Fi, PXA272@416MHz, and QWERTY keyboard WITH backlight! (I remember reading it doesn't have a backlight) And should I mention the price? It's only US$610! US$40 cheaper than the O2 XDA II Mini (the price might hike as demand soar... And I bet it will)
Off course it only has 64 Megs of RAM and ROM so WM 5.0 upgrade is out of the question. But it has QWERTY keyboard and Wi-Fi, with a proven fast and power efficient processor. But currently, XDA II Mini has nothing to offer besides longer lasting battery to boot against the P50 (The P50 has a laughable 1260 mAH)
One thing I like about WM 5.0 is the persistent storage, but other than that, nothing... I dunno... It's very tempting to buy the P50, as the Wizard might be available early next year here in my country... I am ready as I can be to let go my Treo 650.