You cannot display the source code on Windows Mobile devices but on the BlackBerry.
BlackBerry key combination: Alt-RBVS
The best solution is to use Fiddler. You can send requests with the user agent of a Windows Mobile Device
Mozilla/4.0 (compatible; MSIE 6.0; Windows CE; IEMobile 6.12) O2 Xda Zinc
or a BlackBerry
BlackBerry8900/4.6.1.250 Profile/MIDP-2.0 Configuration/CLDC-1.1 VendorID/100
to your application with the Request Builder of this debugging proxy.