It also offers Internet services such as e-mail (including Microsoft's DirectPush push e-mail solution, as well as BlackBerry services with applications provided by BlackBerry-partnered carriers), instant messaging, web browsing, and local Wi-Fi connectivity.

It is a part of the first line of PDAs directly marketed and sold by HTC.

[16] In July 2007, HTC released a generic update to Windows Mobile 6, freely available to the public.

[19] Official ROM updates are or were available for several versions of the TyTN, including the AT&T/Cingular 8525,[20][21] the Dopod 838Pro,[22][23] the i-mate JASJAM,[24] the O2 XDA Trion,[25] and the Orange SPV M3100[26] (AKU 3.3.0).

[28] Early models of the TyTN (HT624xxx - HT632xxx) have been known to suffer from screen alignment problems and should be avoided.