Update: NIAID provides an explanation as to why they fund more K22s than K99s plus information on the two mechanisms.
Having helped with one of these kangaroo mechanism proposals recently, I am looking forward to learning more from program officers how this initiative shakes out. Initial word from the grape vine leaned toward supporting postdocs early in their training (and as always, dual IC assignment encouraged). Once this second round of applications is reviewed, the NIH career development folks should have more insightful insight to offer, which I’ll gladly pass along. In the meantime, the number (total of 171 awards anticpated) and distribution (see below) of FY07 awards is available. Hard to believe NINR and NCCAM are only funding 1 award each for the entire year. Perhaps they are waiting to see how well the program works before investing heavily. On the other hand, NCI is replacing their K01 mechanism (except for diversity enhancement) with the K99/R00.