Is the Classmate necessary to control the robot in competition?

[Kramer 2654]

can a diffrent laptop be used instead of the classmate?

[EricH]

DRIVER STATION - The collection of the Classmate PC, FirstTouch I/O Module and breadboard provided in the KOP, and a USB hub (either the one provided in the KOP, or a team-supplied USB hub device).

<R83> The Classmate PC must be positioned within the OPERATOR CONSOLE so that the screen display can be clearly seen during inspection and during operation in a MATCH. The Ethernet port on the OPERATOR CONSOLE must be easily and quickly accessible. [remainder of rule left off]

<R84> During competition MATCHES, the ARENA Ethernet cable must connect directly to the Ethernet port on the Classmate PC (making a direct connection via a “pigtail” cable is permitted). Only the Classmate PC may connect to the competition cable – no direct connection of team-provided portable computers, PDAs, or alternate devices is permitted.

I think the above rules are quite clear: classmate only. Especially note <R84>, second sentence.