Yes and no. From an investor standpoint, it shouldn't change how we view the potential impacts of the suits, but from a technical standpoint, the patents are not entirely the same.
For both the FB and LNKD suits, all 4 patents are asserted as being infringed: 232/974/971/241.
For this Salesforce.com suit, only 232/974/971 are being asserted. No 241 claims.
And as an FYI, the outstanding Novell suit is also just 232/974/971.
So it seems FB and LNKD are asserted to be using 241 whereas Novell and Salesforce.com are not, but all four defendants are asserted to be using 232/974/971.