IBM is dumping its typewriter business into a minority-owned joint venture soon, but in the meantime it has added new features to its Wheelwriter 15 and Personal Wheelwriter 2 without changing the prices: the $870 Wheelwriter 15 adds to the functions of the Wheelwriter 10 Format Recall for storing nine settings for margins and tabs; storage for the layouts of up to nine forms; and a Draw function so that boxes and vertical lines can be created for charts and forms; and the $644 Personal Wheelwriter 2 adds a 50,000-word spelling checker with room for an additional 300 words; enough automatic correction memory for 1,500 characters or about 20 typed lines; and the erase, tab and underscore functions can be used with groups of words rather than on a character-by-character basis; out now in the US.