This is my first post. Like yourselves, I am a huge user of iTunes Match, and I see this software update as a downgrade.
-I know what songs I want to download to my iPhone 4, why should I have to listen to them first before them becoming available (downloaded to device).
-If i want to download 1 song from an album, why should I have to download the full album, then manually cancel the other 19 songs.
- I understand that if you want to start again you can delete the whole collection then re-download. On my home broadband speed in the UK that would take me all day.
Thankfully,I have yet to click update to iOS6 on the iPad.