In reply to Paul Phillips - UKC and UKH:
Unless I've missed something, does the revo have a function for locking off deliberately, as gri-gri's do, for use when dogging a sport climb?
One of the nice things about a grigri is that when your partner says "take" you can lock off, which locks the device and then you only need to keep a grip on the rope, without actively locking off.
Also, it doesn't look like it can be used for abseiling?
Not quite sure what its target market is? Newbie onsight sport climbers?