[EricH]

Answer #1: Nobody knows. Wait until January. They have not been included since 2004.

Answer #2: Many teams do use COTS pneumatic wheels. Find the usual suppliers (McMaster, MSC, etc.). Note: if the size is less than 6", you'll have better luck finding pneumatic casters.

Answer #3: 2004's wheels were/are COTS 12" wheels from Skyway. I'm not sure if they're still COTS, but it doesn't hurt to investigate.

If you are developing something for next year, use caution--we don't know yet what will be allowed.