Photosynth's mobile panorama app has only been made for Windows Phone + iOS - no Android version yet.
For viewing panoramas on Surface RT, you should be able to view the medium detail version of any pano in Internet Explorer via Photosynth's preliminary HTML5 viewer.
As for creating panoramas on a Surface RT in a style similar to Photosynth's mobile app, check out this sneak peek of the Windows 8.1/Windows RT 8.1 update that will be available for download on your Surface during Microsoft's annual conference for programmers: BUILD ( http:buildwindows.com/ ) which is happening this year on June 26th.
If you do decide to download and test the preview version of 8.1, you'll need to reinstall your apps when you update to 8.1 final this fall.
8.1 Preview details: http://www.zdnet.com/microsoft-goes-public-with-windows-8-1-upgrade-policies-7000016419