Hmm. Not a good day to issue new errata, eh?
Anyway, I just noticed that a new Errata for LPC2294 was issued on April
1, 2005. Version 1.5
http://www.semiconductors.philips.com/acrobat_download/erratasheets/2294_2.pdf
New sections include EXTINT.2, Core.1, TIMER.1, PWM.1, UART.1, V3.1
which should give you an idea of which areas there are newly listed
problems in.
Brett