Things seem to be moving along on the Project X front. My co-conspirator has officially started on working out her notice at her job, so she should be able to work full-time on it by April. Project Y will probably finish around then (at least according to the estimates I put together earlier this week), so that should dovetail nicely. In the meanwhile, she's going to spend a day a week on the project, and I should be able to spend one or two days a week, so things shouldn't completely seize up before then.
However, hopefully I can finish off a couple of other things on my to-do list in the next week and a half to get them out of the way.