I think I understand Zopa's delayed U.S. launch a bit better now. Apparently, the company is looking to expand not just in the U.S. but in Asia as well (along with the previously announced Italian licensee).

Here's a quote from a recent blog entry

"...we have had over 100 different teams in over 40 countries get in touch with with us, looking to launch a version of Zopa locally. These have ranged in distance from France to New Zealand, and included countries as diverse as Brazil, Mexico, Canada, India, Japan, Korea, Taiwan, Australia, South Africa, Ghana, Turkey, Spain, Germany, The Netherlands, Poland, Slovakia, Lithuania and Romania."

We've seen that interest at Online Banking Report as well. Our Feb. 2006 report on Prosper and P2P lending was our best selling issue of all time. We're planning an update later this year, hopefully with an analysis of Zopa's U.S. version, which the company still says is coming this year.