It was announced today at Sony's pre-Tokyo Game Show presser that the PlayStation Plus service is coming to PS Vita this November. Members will be able to access the included instant game collection, buy games for a discount, and 1GB of online game storage for saves and DLC. It's just like PS Plus now, only smaller and portable.
Sony says that if you're already a PlayStation Plus member on your PS3, you will be able to enjoy the service on Vita at no extra cost. Pricing is set at a flat rate: three months for $18, or one year for $50.