i found this on the wiki/forum on htc's website. take it for what it is, a users comment.
" just called sprint today and ask to be transfer to tech support the rep said that the update for the touch gps will be march 18th for sure, but couldn't confirm the rev a. So if i where you guys call them too and verify yourself. I can wait !!! (if you call don't talk to cust. care there idiots"
here is a link:
http://www.htcwiki.com/thread/112502...&maxResults=20