So hands up who's had this error in Visual Studio?
"Post-deploy error 0x80070005 returned after calling '\Windows\wceload.exe /noui \Windows\System_SR_enu_wm.cab'. Device Connectivity Component
"
*Hand up in the air
Well it turns out the application that you are trying to debug is actually deployed and will work, the System_SR_enu_wm.cab is also brought to the party and put into the Windows System folder...
If you run the CAB file, which helps you debug on the device, no more error :)