Hello. I was able to download gm v1.6 using <go to> http://www.google.com/gmm/apps/v1.6....00_v4_1_L1.jad
input manually. Got this tip from the Google mobile help forums. (Right click link, select 'Properties' to view the whole string)
I've found there is at least one glitch in this version (previous ones I have tried have been flawless, not to mention the download recognition problem) where you have to clear the map before looking for anything else, otherwise it goes into some strange loops or null exception errors. Otherwise it runs faster and has a few more options than before. Still no internal GPS integration.
Don't forget to erase any previous versions you may have and soft reset before installing. If it doesn't work for you, you can always erase and reinstall v1.5 using the link from redsoxnation.
By the way, I'm using an 8703e on Sprint.