I've been seeing quite a few recipes lately with matcha powder. You mentioned it on the back to basics [1] - but can you tell us more? Any good places to buy it?
Blog and Shop: http://ojami.etsy.com [2] and http://ojamiya.com [3]
Links:
[1] http://www.justhungry.com/2006/08/back_to_japanes.html
[2] http://ojami.etsy.com
[3] http://ojamiya.com