I am considering purchasing the Professional Edition. I see that you get SVN access for the source with the Professional Edition (although is a support subscription required for this too?) - however, what does this give you that the standard installation doesn't (as you provide the source with that anyway?).

For instance, you currently have Coolite Toolkit Version 0.7 (at the time of writing) available for download - would version 0.8 or development versions be available via SVN? The reason I ask is because I would primarily be making the purchase for use with ASP.Net MVC development work.

Any clarification would be greatly appreciated.