When I get PS+, will other accounts on my PS3 be able to access the game as long as my account with PS+ has a subscription? Or are the games only accessible to my account, even if the other accounts are on the same console? Thanks.
Every profile on the system can play any game as long as the account that holds the PS+ subscription is present and active, even if profiles are for other regions. For instance I have both a US and JPN profile on my system and play all the JPN titles from my US profile.
If you cancel the PS+ subscription then all of the Free titles become locked. Any game you purchased, even at a discounted rate is still accessible to all profiles.