I didn't know you could roll some folders while they were folded. I'll have to look into that before I buy one.
I don't have one yet, so I'm not sure if any of the ones I have been eyeballing can be rolled or not (while folded).
An open bottom case with a bike that can be rolled seems like the perfect solution.
Unfortunately, they don't sell these things around here, so I will be buying it online. So I will have to take the seller's word about it rolling or not.
And I'm sure I'll ride it. It might be a little heavier than a regular folding bike, but I'll never have to pedal it if I don't want to. However, I have a stretch of hill around 2 miles long between my house and the train station. It's uphill on the way home. I know there is no way I would ride it everyday if I had to pedal that. On the contrary, I will ride every day if i don't have to pedal, and I will likely even pedal a little to help the motor...
I love the idea of a bottomles bag, or a bag that lets the wheels touch the ground, so I can roll it. Anyone know where to get such a bag?