I have my iPAQ 614c for some days now (so unfortunately I might not be of great help in this forum yet...).
All my Windows Mobile 6.0 devices before did a recipients auto complete, i.e. if you typed the first letters of a name in the to: field of a text message/e mail there would show up a list of your contacts starting with these letters.
I thought this was a Windows Mobile feature, but it does not work on my 614c.
Am I missing something?