The evolution of phones away from physical buttons toward touchscreens is great if you're into clean, aesthetic design. But, if you're suffering from limited vision, there are some obvious issues. Thankfully the iPhone 4 at least has support for Braille displays like those Brailliant, as kindly demonstrated by acoustic guitar virtuoso and software guru Victor Tasaran. Using the six buttons on his Brailliant-32 he's able to navigate across icons, then feel the text beneath each one -- or wait for the hurried text-to-speech to read back to him. It's an encouraging solution for smartphone ac
