HTC will soon make the Windows Mobile 6.1 update officially available for HTC Kaiser (TyTN II) phones, which can already be downloaded. Clients of American AT&T won't receive the update in the first round, but this won't disturb users in other areas. According to preliminary infos the device's graphics driver has been improved, but there's still no word about a real graphics accelerator. The new software can display text messages like conversations, and power consumption has also been improved. Details of the not yet official update are available at this link.