need icons for the keypad

[OwenMcGirr]

specifically backspace, clear, shift and words/letters

[tnantais]

The buttons in the iPod version are 40 points high and in the iPod, 75 points. In Mhairi's mockup, icons are a little less than 50% of the height of the key. So, we need four versions of each icon in the following sizes:

19X19 iPhone
38X38 iPhone@2x
35X35 iPad
70X70 iPad@2x