I don't have any experience with SSRS, but I have converted Visual Studio solutions to smartphones. The biggest problem is the size of the screen. A normal computer will have 800x600 or 1024x768, but I smart phone is usually around 230x230 or so. You will have to try and limit the size of the screen to that resolution to make it readable.
Hope that helps!
~Brett
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Web/.net Programmer & DBA
Central PA