mega128 at 18.432 MHz

Hi,

Has anyone tried running a mega128 using a 18.4320 MHz crystal?

I found some websites where some dish network hackers are using >16Mhz
crystals on an access card running a mega128.

If the mcu can handle the higher clock rate, it seems like a cheap way
to get a 20% performance boost over using a 14.7456 MHz crystal while
still having accurate (0% error) serial port access.

Ted Roth