I've had a lot of difficulty finding time to work on BlogAPI, finding that I'm typically tied up with my day job or with paying client work. I know that there were a pretty fair number of people that used BlogAPI in Drupal 6 that would like to use it in Drupal 7.

I've been thinking a lot about how to build BlogAPI for Drupal 7 and I think using Services would be a good way to go. There's a few BlogAPIs that use XML-RPC, but there are a few that are moving to simple RESTful servies or JSON-RPC, so Services make sense to me.