The Flip&Change toys are large single-step conversion toys that are the same size as Mega class One-Step toys.
In the first wave of the general release figures we had Optimus and Grimlock, and they are going to end up in a 2-pack box... but no idea if they are a store exclusive somewhere.
(and I doubt anyone here is going to be too interested... )

The two toys look to be the same as the individual release figures, so unless they are reeaally cheap, it's more a case of - what's the point.