I use the treo to make cold calls, and I find that all the original apps are the most efficient for me to use. I store the leads in my address book. and when I go through a contact, I change it's category contacts-old . I do this with the seidio 2 in 1 earphones. and do it all with one thumb. if a contact wants more info, I send them a memo in memopad which becomes an attachment in snappermail. then i put it on my todo list to followup tomorrow. has made the drudgery of making cold calls a lot easier. anybody out there doing the same thing? which apps/hardware do you use?