Tags in email is something seriously needed right now, though Gmail's Labels can alternate as tags but they're not really tags to begin with.

Another aspect this article alludes to is already kinda available in inbox.com (which I have been using lately), inbox.com let you save images/pictures directly from your received email to your photo/storage location.

As far as I know, Yahoo! Mail already has that feature, Arif. You can save the attached photos of your incoming mails to your Yahoo! Photo folders.

Ah, I haven't been using Yahoo, even their new version is slow compared to Gmail. Inbox.com does not seem to have Ajax interface, but they provide 5G and so far seem pretty fast.

yahoo mail is a little slow, but overall, i think it's a good service.

Yes, the AJAX interface of Yahoo seems a bit clunky at times.