I forgot to mention that the droid 2 has 2.2 officially, as the only available android version too.
Droid X will have the 2.2 update soon, and so will the galaxy S line.
IT IS A FROYO THING !!
thats for sure, on 2.1 waze crashed, yes, it froze the phone, yes, and sometimes i had to do a battery pull... YES
but on 2.2 (stock, cyanogen, sense, whatever), my phone REBOOTS every few minutes if waze is in the foreground... before it would crash, more often if i multitasked.
now, it can't be used.
so it IS worse on froyo
ps: still, waze is the only app killing my phone like this, i tired other GPS apps, including google navigation, google maps, the google maps "mod" "brut", and whatnot
only wase kills my phone like this.