Any of the newer Treos (600, 650, 680, 700p, 700w, 700wx, and 750v) use the Messaging app. It's a great way to keep that specical someone happy.

You may know how a Treo arranges your messages like a chat thread, showing the conversation's previous messages above the one you're composing. Here's why that's a useful feature--for playboys and loyal men alike:

For Playboys: With all those chicks in your life, it's so easy to text the wrong one. You'll have quite a lot of explaining to do if Rita receives that message meant for Mina. Luckily, the Messaging app shows the last girl who texted, so you'll know you're actually texting carla.

For Loyal Men: She means everything to you, and the last thing you'd want to happen is forget what you've been talking about. Since all your messages are helpfully listed, you'll know what lovey-dovey messages you've been exchanging literally a month ago.

This is yet another feature of the smartphone that in my opinion makes life a little easier. No wonder some enterprising user has found a way to hack the 750v's messaging app and transfer it to other Windows Mobile smartphones and PDA phones.