What makes the design of PBXT similar to MyISAM?

PBXT is a transactional storage engine, but what does the design have in common with MyISAM?

I'll be answering this and other questions during my session at the MySQL Users Conference next week:


PrimeBase XT: Design and Implementation of a Transactional Storage Engine
Date: Wednesday, April 25
Time: 10:45am - 11:45am
Location: Ballroom F


So be sure to check it out! :)