User blog comment:Superslacker87/Three Different Versions/@comment-5039776-20120812023300/@comment-5039776-20120812025431

Note - a single letter cannot be copyrighted.

Anyone who wants to design 3 simple, but descriptive, images containing say the letters i (for Apple), K (for Kindle) and D (for Droid) is welcome.

However, the designs must be new and not adaptations of corporate logos / registered trade marks.

It might be less confusing just to type in your platform.