Wirelessly posted (8700g: BlackBerry8700/4.2.1 Profile/MIDP-2.0 Configuration/CLDC-1.1 VendorID/100)

So far I have not had the problem where it hangs and stops updating position. This is something I had with all previous versions, and BB maps, too. A few times the application has taken two or three beats longer to update position, but no totally hanging up.