Adding what I said in the other thread:
Ripple reminds me of Google wave. It was neat, it had lots of potential, it was geeky, the few people who got it were really excited, and it ended up being totally worthless.
I see it as a bunch of ad-hoc solutions hacked together, with no brilliancy at all.
In fact, you can just modify the Bticoin code slightly to come up with something very similar to Ripple.
The network effect of transfers, and the trust aspects of it are actually pretty clever. It has potential.
But in being clever, they ruined everything that makes Bitcoin brilliant. Bitcoin is brilliant because it is the perfect game theory play. It motivates everyone to use it, intrinsically. Ripple motivates no one except OpenCoin.
Profit = Motivation. Hence why scammers exist alongside businesses.