Great post on WM7
https://www.digitaltrends.com/mobile/windows-phone-7-everything-you-need-to-know/
Found it a great read. Full feature line-up with all the missed opportunities highlighted 
Este explorador ya no se admite.
Actualice a Microsoft Edge para aprovechar las características y actualizaciones de seguridad más recientes, y disponer de soporte técnico.
https://www.digitaltrends.com/mobile/windows-phone-7-everything-you-need-to-know/
Found it a great read. Full feature line-up with all the missed opportunities highlighted