Glider co-founder here. We hated how existing email clients treated an email from Paul Graham the same as newsletters and twitter notifications. Gmail's priority inbox tried to fix this problem by filtering out "unimportant" emails, but messages from different contexts were still being mixed together.
We think the best solution is to group emails by sender and context (people, notifications, mailing lists, etc). For example, if I'm a power-seller on eBay, my PayPal notifications are top priority, but I still don't want to see them alongside emails from friends. You already know what types of emails are important to you, so we designed Glider to allow you to easily see that information without having to create an intricate system of labels, filters and folders.
We'd love to hear your thoughts on email. We're looking for honest feedback, so please feel free to tear our idea apart. Is this something that you (or someone you know) would use? Thanks!
[Edit] Also... please paste the "if sender == 'email@example.com':" condition that I want to believe is in your codebase.
At the moment, we're integrating through GMail through their API, so you can revoke access at any time, and we never see your password.
Here's a full screenshot of our current iteration just in case: http://i39.tinypic.com/xfug5d.png
That said it appears a non-trivial classification / UI problem on a few fronts. Good luck :)
I think that could be really interesting, and similar concepts applied to various services/notification emails.
I get quite a lot of emails a day so I'm interested to how this will work with that but I truly see this problem. Some notifications are really important such as Amazon Shipping, Paypal Issues and certain messages, while some direct emails are more important than others.
Some ideas. Truly important emails should give me a push notification on iOS if/once you get to creating an app, I see lots of value in mobile for this solution as there are few competitors.
Secondly I'd like to be reminded if I don't get to an urgent email as sometimes I forget to read emails after I've seen the subject but maybe haven't clicked.
I hope it keeps my Google address book and my ability to send from a selection email addresses I own. Losing those would be a deal breaker.
Our interface and the way we present emails on the page (contrary to traditional inboxes) decreases the importance of having phenomenal search algorithms.
If there was a way to have spam protection as a service for email providers that don't already offer it (like Gmail does) that would be a great product indeed. I'd drop Mail/Sparrow and Spam Sieve if I could get it all in one package.
That's my #1 gripe, less the prioritization and/or labeling of email and message types. Creating folders has worked pretty well so far. But I'd even be willing to change my workflow for an all-in-one solution.
Unrelated, the CSS background on your marketing page is a little borked on larger screens:
I'm on a standard 27" apple display running at 2560 x 1440 (which was the default resolution).
What web client do you use?
Glider, the smart inbox
Glider, how it works
I'd not pay for a version that had adds, and personally would likely to pay to remove adds, but it's unclear if that'd apply to many people.
And multiple accounts at once.
But don't let these wishes distract you for now. :)