I've had 3 now (don't ask). 2nd one was pure crap. Constantly dropping 3g/4g, even at my house which is within a couple hundred yards of a tower, where even the Tbolt and Bionic worked great!
This one seems to be (knock on wood!) working as solid as the first one again. So maybe there's an occasional device with a bad antenna or something... who knows.
And I edited your post b/c your "as" for some reason autocorrected to "a**" in both cases
jntdroid,
If you use gmail or gtalk, can you go check out my post at https://forums.motorola.com/posts/9ece2860f0 and see if your google notifications are delayed when you are connected to wifi? Seeing the posts in these threads about people having better 4g success after a return makes me wonder if perhaps I got an M with bad wifi.
If at least a few people will confirm that they do not have the same notification delay on wifi, I will do a factory reset to see if that fixes it, and if not, I will take it back to Best Buy for an exchange.