August's issue of Sony's digital magazine Qore, which is available through the PlayStation Network, will include access to the Resistance 2 multiplayer beta.
The beta is expected to launch in "late September."
Each issue of Qore sells for $2.99 and a yearly subscription (13 issues) can be purchased for $24.99.
We'll be checking out the multiplayer beta, for sure. For now, read our impressions of the multiplayer in Insomniac's FPS from E3 2008.