The PlayStation Blog has announced all the titles that will be available for free for PlayStation Plus members this month. This July, Plus subscribers will be able to download Battlefield 3, Metal Slug XX, Jet Set Radio, Dokuro and Oddworld: Munch’s Oddysee HD completely free of charge.
Overall, there are three PlayStation 3 titles (Battlefield 3, Jet Set Radio and Oddworld,) one PlayStation Vita title (Dokuro) and one PlayStation Portable title (Metal Slug XX, which by the way is also compatible with the Vita.) It looks like PS Plus subscribers will be saving a lot of money on games this summer.
When the PS Store updates later today, PS Plus members will be able to download Battlefield 3 for free.
Source: PlayStation Blog