Hi Jeremy,
When you do release the iPhone app, hopefully you will charge something for it (especially if it works well as a standalone tool on the iPhone even if you don't have TR on the desktop). I'd pay for it gladly, and anyone who's using this as a day-to-day business tool should be able to stretch to $6 or more for an iphone version!!
Some people may disagree with this (I may even get flamed), but the way apps seem to be selling on the app store, even a small charge for this application will hopefully put you in a position where you can grow your dev team, which will mean extra benefits all around.
If I want to move to something like Things, it'll cost me about $50 USD for the desktop app and another $10 for the iPhone app, and that's for a Mac only app. You have a cross platform tool with great functionality. If you can sell the app and it sells well it'll be great news for all of us.
My point is, I really need to be able to organise stuff even when I don't have the laptop with me (which is left in the office as often as possible!!), and I rather hand you the cash for a great iPhone app that works with tools I already use, than go through the hassle of buying a new desktop app, learning a new a system and buying an iPhone app.
My fingers are crossed with great optimism :) Just my 2 cents.
Cheers
T.
