SRWare is doing the hosting, yes. I've already arranged to send them the official build of Iron Portable once it's ready.
I'm not sure if SRWare wants a splash, but I can't imagine they would say no. I'll drop them a note anyway, then let you know when they reply.
I just got a note back from SRWare:
if the users prefer a splash screen, then you should probably add one, if it doesn't delays the launch too much.
I've already sent a note back, telling them that the splash doesn't delay the launch at all.