I am running V1.1 with the most recent scripts, and have used Maps once, Navigation once and Places twice. No FC's at all. I will note, however, that the last time I had Velocity on my phone (v0.4) any application that used Maps - Navigation, Places, etc. - would either FC or lag to the point of causing the phone to reboot.
I will try using Maps later on, and if it gives me trouble, I will let you all know.
I thought I had it fixed last night, I turned off stage fright, let advertisements come through, and had set my dalvik to 32megs last night and it stopped - didn't FC no matter what even on starting latitude. But this morning checked market for updates and viola maps FC twice and I didn't start it yet... I had updated to maps 5.7.0 thinking that might fix it so I guess it's back to 5.5.0 till they get it right.