That's the point of Google allowing you to email links to your Drive files, not the point of this project. This is to let you get files into your Drive/Dropbox/Skydrive via email. That will still have the limit of whatever email service you're sending from. My servers have no size limit, though the "free" limit is just 5MB per email.
I like this, even though I'm not in the user demographic, I hope you get lots of users!
No. I'm a heavy DropBox user and have never used it to avoid email filesize limits. And I am pretty sure I am far from alone.