Apparently IBM is gearing up to pick a fight with Hewlett Packard.  They're being considered a bit of a threat now that they're merging with Compaq.

IBM has already run a few moderately successful IT campaigns against the entrenched forces of Sun and the green troops of Dell. With its Compaq merger now theoretically on track thanks to a narrow voting margin, Hewlett-Packard would seem to be a ripe candidate for a few IBM sorties during the onset of the inevitable marketing confusion resulting from the two companies' attempts to assimilate each other.