It would be interesting to see what folks would do if WCG were to add GPU crunching.

2009-07-23: AQUA@home - AQUA@home's minimum CPU requirements
AQUA's complex work units have meant extremely long running times, especially on slower
systems. This has been a problem for volunteers as well as the project managers. We have
been working intensely on improving the efficiency of our applications. One major achievement
has been very high CPU utilization on multi-core computers. But this solution will not
be of any use on single core CPUs. We appreciate all of our volunteers and their help, but
sincerely believe that slower machines can be of much more benefit in BOINC projects with
shorter running work units. For this reason AQUA will no longer send work units to
single core CPUs. Hyper-threading CPUs are supported, though. Should we again release a CUDA
version of our application, single core CPUs will be supported if the system has a CUDA card.
Vectorization of our code also implies that SSE2 support is a requirement for running AQUA's
applications.

A good way to get relly hooked on it is to put in a little each month. Nothing that you'd really miss. When you start seeing repayments coming back to your account, you can turn around and lend that out again to someone else. You'll typically see repayments being added back to your account around the middle of each month. Kiva's grown to the point that they standardized processing cycles. Over time, you'll get to see the real multiplier effect of what you put in. Your money is pooled with others who pick the same borrower so 20 people put up $50 and the borrower gets the $1000 they need. I've been part of 60+ loans so far and have lent out my original money over three times. I've built up to where I now just re-lend the money out as it comes back in, doing 3-4 new loans each month. That's my kind of "recycling"!