I would be nice for a future version 13 of PowerDVD, to have a built-in a media center view style for movie selection and built-in ISO mounter. The first part isn't a technlogical chalenge and should be design for easier access with a remote. The second part shouldn't be that hard too since
http://wincdemu.sysprogs.org/ offers open source for a CD/DVD/BD emulator.
If you are looking into ideas for generating money, that is one and I am willing to pay for an upgrade. Since Windows 8 MCE will be a paid addon, might I as well look for a all-in-one solution instead of a MCE/VirtualDrive/MountDrive/PowerDVD combination.