My understanding, and experience from my SJ33, is that any memo fields over 4k will be truncated on your PDA. And heaven forbid if you modify them on your PDA and sync back to Outlook!
Because of this problem I use Chapura's KeySuite ( www.chapura.com
), where the apps do not have the 4k limit that the built-in apps do. However, Chapura's apps DO use their own database so you use up space there - just empty out the built-tin app's databases or, in your case, never sync up with the built-in apps.
Yup, how suite it is ( OK, bad pun ).
Yay, my 50th post, chasing down 100!