Thanks for your answer! Fortunately it's just a theorical question and I dont have to create a site like I asked. It just came to my mind as I saw your videos.

I thinks views could be a good solution, but there can be problems for example with the breadcumb... (we can't set different frontpages in breadcumb to different languages)

Anyway I asked the same question at drupal.hu and I was said to use the i18n module. I will look at it when I have some free time. :o)

Your global redirect sounds to be a very nice feature. Thanks!

Drupal 6 will shine! (RC1 is here!) :o)