The nicest notes I've received from readers are those that tell me I've gotten them back into reading for entertainment. For me, there is no greater compliment.
The Dalai Lama said that he thinks mother's love is the best symbol for love and compassion, because it is totally disinterested.
In some cases we've been building tools that are specific to Linux for the desktop, and they only work on Linux, but I see two major projects that are wildly, wildly successful: Mozilla and OpenOffice, and those two programs are cross platform.