Or even directly from Kiva.org:
Kiva Terms of Use Agreement (Last Updated January 26, 2011) | Kiva
"A Field Partner may voluntarily choose to pre-fund your Borrower in the short-term from its own funds in anticipation of receiving your Loan as backfill."
Not against the concept and this may be better soon (as in the NY times article) but you ARE currently funding "the slaughterhouse operation".