Hah. Well, my schedule is very much up in the air from now until September. I know I'll be unavailable for all of May and June. I'm pretty sure I'll be unavailable in July and August. I'll let you know when if I ever find out otherwise, but I probably won't find out until the end of June.
Bottom line: schedule some hikes without me, but email me later in the summer to make sure I'm still there :)