I totally agree with you, except for the last sentence.
Email is great, yes. However, please continue to innovate, because there could be something more awesome than email which would render email redundant.
continuing to innovate is good, yes, but all the 'innovations' so far seem to come at the expense of one of the good bits i mentioned. if your product makes email more awesome but breaks interoperability, it's not awesome.
Perhaps I should have said "email management sucks" but that isn't quite as succinct in the title of a blog post.
I am really focusing on ways to turn your email into something that is easy to act on.