I find switching between QWERTY and DVORAK as easy as transposing key signatures in music. Ask any studied musician about transposing from C major to G major, it is just a tiny mental shift, that's all. I must admit, though, that going from a regular DVORAK to a Microsoft "split" keyboard , natural keyboard, or ergonomic keyboard is very frustrating.

The Recon Scout Robot reminds me of this device. The benefit of this design is you could throw the robot on top of a roof or through a window. It can then be wirelessly piloted, all the while delivering a realtime video feed of whatever is in sight. Oh, and it is slightly softer than a whisper (not counting glass breaking through the window. There are two great videos on YouTube: http://www.youtube.com/watch?v=Y3exsvQiH6Q and http://www.youtube.com/watch?v=oiZ7GLRNYfY

Actually you can already Convert Scanned PDF Documents to Text with Google OCR, though it is not immediate, unless you have control of the indexing frequency of your site. http://www.labnol.org/software/convert-scanned-pdf-images-to-text-with-google-ocr/5158/