It might be possible, to allow people, who want to use your CPU only a small amount, till you get some resources from them yourself (which would need quite some tracking, but then noone could just steal all your processor tme). Maybe your neighbors could tell you, what they got from whom, and you could give those people CPU-time.
Many Gnutella Clients have a stable GUID, so they could be tracked by that. If you'd allow 1000% if the CPU time you got from them + x (the starting amount) + xytime/MB*MB downloaded from that client ( you would have a way to stop people from stealing your time ).
That means a scientist could give bandwidth to the network and get CPU-time for it.
PS: A search for gnuhtc*.gr would simply be "gnuhtc .gr", because afaik "*" isn't supported.
-- Arne Bab.
http://gnufu.net - Gnutella For Users