What an interesting turn of events - Oracle just sued a notorious patent troll Lodsys, seeking invalidation of four of Lodsys' patents. In fact, these are all the patents Lodsys owns - if Oracle wins, Lodsys will have nothing to threaten innocent developers with.
If you haven't been following the Lodsys drama for the past year+, let me step back for a brief history lesson. Lodsys LLC, a Texas patent troll shell corporation, has been harassing various developers since early 2011, including many with Android apps in the Play Store. The patents Lodsys used to threaten Android developers, large and small, are 7,222,078, to which everyone refers to as simply "078" and 7,620,565 ("565").