It's a busy day so just a quick info. Long awaited MIIS SP2 package is out there. You can just go and grab it from Microsoft Download. MIIS SP2 is bringing SQL 2005 support as a MIIS database, official .NET 2.0 support, Oracle 10g support etc. I will try to grab all changes and post it here shortly.
Update: it looks like SAP MA which I think will be shipped as a part of SP2 is being shipped separately and it is not yet released.