I have experience working integrating Flash frontend end with SQL backend using PHP or ASP.NET(C#). My question is now related to HMTL5 with the said technologies. To be more specific is a site like www.hochspunnung.dk
achievable with an HTML5(Canvas) user interface using the aforementioned technologies to provide the front end. I don't have experience yet with Canvas but I would like to know what can be possible and what can't be possible.