and to further assist, following the official link from the url above takes you to the same official page as your device.. which says THERE ARE NO UPDATES AT THIS TIME
I waited patiently for a couple weeks for my phone to notify me or for dell to update its page... nothing from amy on the support pages, she is on leave I think...
I ended up going from 1.6 to 2.2 via the download the official att 2.2 for locked phones to my sd card... then renamed my file to update.pkg ... used the recovery option on the phone to use that image ... this was also much faster and easier than the QDLtool ... if anyone is still waiting for 2.2 update and just bought from best buy like I did and your patience is wearing thin, let me know if u need the link where I downloaded... im on 2.2 now and love the device!