Or Google gets bought by someone who would like Oracle's use of Sun's patents (although imagining Google being bought out is hard at them moment). Would be nice if there was a way of actively public-domaining patents (so you can use them defensively, but no-one can ever use them offensively. Would be a non-issue if prior art was more reliably a defence (or IMHO non-obviousness was more rigorously enforced)).

(edit: Maybe there is already, IANAL. Like what Manfred does in Charles Stross' Accelerando).