Does the 8700 actually lock into this cradle? Or is just just sitting there and could be knocked right out?

The OEM RIM desktop stand for the 72xx I'm using is that way (just sits there) and I just don't see the need to switch if this cradle doesn't offer the secure mount I thought it would.

Any concerns about using an aftermarket charger? I beleive it was rcg who initially raised some.