Which computer/vario?

I don't know what your budget is but if you already have the iPaq and
are running WinPilot, SeeYou Mobile or something similar, you could
just add the LX1600, which (I think) is designed primarily for use
with a PocketPC.

LX1600 is a great system.....however you noted it will interface with
WinPilot, it does not, but does interface with FlywithCE Navigator and
SeeYou Mobile, both programs are excellent and also far less costly that
Winpilot. With either of these software you can select from either the iPaq
or the LX1600 and data is automatically transferred to the other (i.e.
change a turnpoint on iPaq and data changes on LX1600 and vise
versa....nifty
tim