If user has SQL Prompt installed, apply formatting automatically to SQL prior to checking in
Say for example that View was created manually using formatted code (from SQL Prompt for instance) and checked in, the original version in Source Control is nicely formatted and so on. However, someone then comes along, makes a small change inside mssmsand hits save on the view, the code is mashed and FAR more lines are detected as being different when that revision is next checked in. When you script items for comparison to SVN, formatted versions should be compared. Obviously if you want to check in a layout change, there will need to be an option for that too.
This provides a great way to standardise code styles; trying to clean up a legacy database prior to adding it to Source Control could be a monumental task, but if the option were there to automatically apply the rules in SQL Prompt (which ideally would already be shared by the developers anyway) would mean the entire code base could easily be standardised.
It's 'one less thing to have to remember' too.