Windows Mobile 6.1 includes enhancements that help make setting up your phone, text messaging, checking your e-mail, and other Pocket PC/Smartphone tasks faster than before.

Here are links to download Windows Mobile 6.1 Upgrade for various Carriers or Manufacturers (OEM):

+ HTC Touch Dual: link
+ HTC Touch Cruise: link
+ HTC TyTN II: link
+ HTC Touch from Sprint: link
+ HTC S720 from telus: link
+ Pantech Duo C810: link
+ Samsung Blackjack SGH-i617: link
+ Samsung BlackJack II: link
+ Samsung Omnia SCH-i900: link
+ Verizon Samsung SCH-i760: link
+ Asus P527: link
+ Asus P750: link
+ Motorola Q9: link
+ AT&T Tilt: link
+ Intermec CN3: link
+ Verizon UStarcom XV6800: link
+ O2 XDA (All Models): link

Feel free to add the latest links to download Windows Mobile 6.1 upgrades for Pocket PC or Smartphone in the comments.