does it not infringe their ‘copy right’?

http://pea.to/kc

And what do you mean “sizable inbox”? You shouldn’t be storing messages in your Inbox – they should be immediately sorted/filed into other folders. If you don’t, you fail email. Gmail’s filters make this automatic and remove any excuses.

We’re about giving you fast access to your email history, letting you get to documents and messages that are months or years old with just a couple of taps. It’s a different calling than a traditional mail app.

What we wanted to do here is not so much replace Apple’s mail as give full, fast access to your complete email history. Your email archive is a rich information archive that you need access to, sometimes most of all when you’re not at your computer.

Good point about the Outlook connector – more than one account or using the Outlook connector requires the premium subscription.

iPhone 3.0 will indeed offer some limited search, but I think folks might want to try this anyhow. We do have full-text search (of messages and attachments) in our plans, but we think that this is a better way to find messages and documents than keyword search. We did this first ’cause we think it’s better. Give it a shot!

suggest waiting for 3.0 to see what that has to offer before getting your head around this