First if the app would have problems under 8.0 with things like SQL-SELECTS and unwell formed Group Bys ect. then you will have problems in 9.0 beta.

Also this is a beta so there may well be problems, but then you can give feedback to MS so that they can fix these 'issues' before the real release.

My guess is 99.9%+ of the code in the app will work fine, it is that 1 in 1,000 lOC that may get-ya. <s>

Anthony