Hey. If you like, you can be an early guinea pig. I've managed to get the rain working and the game compiles just fine. I haven't TESTED it at all beyond that though. I have about 3 games to get through before that. If you'd like to try it out now, email me (dave@wadjeteyegames.com) and I'll send you the build!
Hello again. I do not think I received that build yet ^^"