HI Mike,
Thanks for the reply. Yeah the release date is a little way away as far as I know. We just have a project that needs them but are having IAP135s in the interim.
What we'll be doing when the IAP225s come out is....
Upgrade the code version on the IAP135 (there will no doubt be a new release for the IAP220 series)
Then unplug an IAP135 and plug in an IAP225 (little bit simplified but you get the idea)
Don't know why I didn't think of this originally.
So there will actually be no need to backup then restore the config.
Cheers
James