While I would enjoy taking a shot at iOS or Android (probably using Xamarin), I believe I'll get the most return out a simple but effective HTML5/Js app. I'm mainly still thinking through technical design at this stage, and the following resources have provided plenty of good considerations:
- Scott Hanselman's ASP.NET Jump Start videos
- Scott Allen's ASP.NET MVC 4 PluralSight course
- John Papa's Single Page Apps PluralSight course
I've already set up my ASP.NET MVC 4 project, installed Web Essentials, hooked up a little bit of data and published a few tests to Windows Azure. The project templates Microsoft added to MVC 4 provide a HUGE benefit. I'm also looking forward to getting even more out of the CSLA Framework. I plan to write a post about the overall design after I'm done.