The analogy doesn't seem to be correct. Mac OS X is an operating system and Office is a suite; they can both be seen as productivity tools and of course the working hours amount spent on each of them is enormous.

Twitter on the other hand is a free service. Not mentioning that Tweetie is merely one app, I don't agree on any app that relates to a free service being sold and that's why I use freeware ones on my desktop and phone. Nevertheless I understand it, exaclty because "developers need to eat". But charging money for an update on the same app seems to me like the particular developers are suffering from ...gluttony. Not to mention it's against the app store policy "pay once for the app - have the updates for free", just as Jobs has also said in one of his speeches.

There are people who have paid for Tweetie. Why should they pay again, since Tweetie 2 is clearly an update?

Actually the tags need correcting: it's "Jamelo" and not "chamelo".

The app is very cool, easy and useful too! :-)

Hello! :)

World of Warcraft!

My favorite scene is the oracle's dance in the smoke...

It is. :-)

No response here either and with real phone entered.

I put a link on the previous comment that didn't work...
This is it: http://flickr.com/photos/tsevis/85465560/

This is the solution! ;)