Yes, there are some advantages to using SQL database, like I said.. But I highly doubt "huge speed advantage" is one of them, unless you compare to a really badly set up system. I know people have switched from DBMail to Dovecot simply because Dovecot is so much faster..

Email isn't stored in SQL, because typically it's rather pointless. Full text search indexing doesn't require SQL, and it's more efficient without SQL anyway. There are some good use cases for storing emails in SQL database, but efficiency isn't one of them.

I wasn't planning on fixing all of security problems, but the typical case of clicking open random email attachments or running random programs from internet should and could be made safe, while still keeping the user interface user friendly. Those are the reasons for most of today's security problems.

SELinux doesn't address the problem. I agree with grandparent, although I think the focus should be more about on the UI side. The really low level implementation could perhaps be addressed with SELinux, but it's not a practical solution for any GUI app currently. For example how would you prevent Open Office from deleting everything in your home dir with SELinux, while still allowing it to read and write arbitrary documents? Yeah, you can't unless you manually go changing the labels every time you want to write somewhere.

I thought about how to implement an actually secure operating system in 2004, where you could safely just run any random program from internet, but no one cared to listen and I moved on.

I lose interest to code after even a single beer. Beer makes me want to talk to other people (even about coding). It makes me enjoy some TV shows/movies more. But what's the point of coding drunk? Seems like a waste of beer.

I mean, it sounds almost like they could listen() a specific port, and once they're done with it, they could close() it! If all applications could always do this automatically, I think we could actually get rid of manual firewall configuration entirely!

So .. If you can only run Mac apps from the Mac app store, how do you develop the Mac apps in the first place, if not using your Mac?

Oh, just read 0olong's comment. That explains it then. Only native english people and dutch have this problem. :)

I'm pretty sure it's the native speakers who have the most trouble with this. Many foreign countries teach English primarily by reading and writing it. Then the than/then difference is obvious. It's only when you learn English by listening that you have trouble with this. I only started having these kind of accidents once I started thinking/speaking fluently in English (not just then/than, but things like file/fail).

Maybe they teach you English differently down there than in Finland :)

Look at the first "Look and feel" dialog. What the hell is that "cancel" button doing in there? There are two choices. One of them is already selected, but the OK button is greyed out. I think, since I've never used Vista.. Even if that greying out means it's simply not focused, what is the purpose of the OK/Cancel there? Does the cancel mean the same as the second option? Does it mean it's going to ask you again the next time? It should be clearly said there, not left to user's guesstimation. I guess it's an improvement, but that page is definitely not something that should be pointed to as an example of good UI design.

No it doesn't. If you hit reply button, it adds In-Reply-To: and/or References: headers, so your new message will still show up as belonging to an old thread. Changing the subject doesn't change this in any email clients I know of.

Well, considering how awesome all the AIs that all the REAL researchers have already managed to produce, I'm shocked that anyone even considers trying any alternative approaches, without even thinking about how such magnificent beings came into existence. I mean, how could you possibly compete with the researchers' AIs that just in a few more years will already be available for everyone to run in their own computers, performing all kinds of complex tasks only by describing them to the AI. As a programmer myself, I fear it's the end of my days as the recently developed AIs will soon out-program myself, generating perfect code and design themselves.

Well, google probably fares much better for most people than typing the URL directly. There's a reason why scammers register typoed URLs.

Then there are of course a lot of people who already use google to type any web addresses, not realizing there's even such a thing as URL bar.

Fully open source Exchange replacement is finally available, thanks to SOGo and Openchange people: http://www.sogo.nu/english.html

It's also awesome that it can use your existing IMAP server for mail storage rather than reimplementing its own. Also if you don't want to lash up 8 things together, they have all-in-one package you can install.