Hi! As smartphone adoption increases and the selection widens things breakdown, sometimes within warranty and sometimes not and some things are not quite the way you would like them to be. I know there's a certain crowd that really enjoy DIY and fix their phone or mod it regardless of warranty.
I think it'd be great to have a store feature/section/educational area or upgrade feature for phone models that folks can order and/or learn about the different uses for their phones beyond the vanilla. Learning about tethering or mods such as cyanogenmod or even having phones with cyanogenmod already on it I think would appeal to DIYers and those interested in making their phone more suited to their tastes and helping educate people on how to use their phone's features to their fullest extent
I could go on but I think you get the idea, DIY friendly ftw