A few more than 5, and in no particular order, the following is a list of the free apps I have on my iPAQ, all of which are excellent...
Picture Viewer (plus Game Box and Snails game)
http://pdamill.com/products.shtml
Pocket Counter (stop watch)
http://www.pocketgear.com/software_d...&associateid=9
Screen Capture
http://www.pocketgear.com/software_d...&associateid=9
Various Games
http://www.bd.wakwak.com/~kinue/ppc/
Pocket Tweak
http://tillanosoft.com/ce/ptweak.html
ezyUnZIP (zip file reader)
http://www.pocketgear.com/software_detail.asp?id=1066
Pocket Explorer (file explorer)
http://www.citadeldevelopment.com/pr...etexplorer.asp
Unit Converter (plus other apps)
http://www.scottandmichelle.net/scott/cestuff.html
Hope this helps... Jase.