Twitterrific 5 offers an incredibly retro-geeky easter egg
Easter Egg: Tweet "OMG Pixels!" w/ Twitterrific v5 for iOS to unlock a special retro theme font, Pixel Lover. #8-bit :-)
If you grew up using computers in the 70s or 80s, or just love the nostalgia of that era, you'll be very, very happy you did.