John, I followed your instructions, and did the upgrade on my TMo 8320. Everything seems to be fine after some adjustments (most learned form the fine folks in this forum!) but like many find Google Maps hanging up on the install. After much reading, I saw you posted Google Maps 1.6.4 would work well, but after a fair amount of searching on the web can't find anything but the latest version. Any suggestions as to where I could locate 1.6.4 for download?

Thanks very much!!