SureType is a QWERTY-based character input method for cell phones which is used on the BlackBerry Pearl. SureType combines a traditional telephone keypad with a QWERTY-based keyboard to create a non-standard way to input text on a cell phone. In addition, SureType contains a list of 35,000 English words, so when a user types the beginning of a word, all the possible words which start with those letters show up on the screen. Additional words can also be added to the word list.[1]
SureType was developed by BlackBerry vendor Research in Motion.