Judging from Sony’s booth at E3 2011, the publisher appears to have plans to release an Uncharted Dual Pack, containing both Drake’s Fortune and Among Thieves.
Additionally, the publisher will be releasing three new dual packs for the PlayStation Portable. They include Syphon Filter: Dark Mirror and SOCOM: Fireteam Bravo, Syphon Filter: Logan's Shadow and Killzone Liberation, and Secret Agent Clank and Dexter.
These packs do not seem to follow the same formula as the Resistance or Uncharted Dual Packs for the PS3.
via PSLS