Where have you seen that? On the official site (nokia.cz) they don't mention the physical keyboard details at all, talking just about the "plnohodnotná hmatová klávesnice QWERTZ s predikcí slov" meaning a full touch keyboard QWERTZ with word prediction, i.e. the on-screen keyboard.

Neither Nokia CZ nor its retail partners were able to tell me anything about the physical keyboard. Too bad. And what is worse, N900 is not available for pre-order from these parties mentioned. What one can do:

- leave your number, they put you in a queue and claim to call you when the device is ready for you in the store (i did it with a Prague Nokia authorised reseller)

- pre-order through a 3rd party channel, e.g. Alza.cz - they claim the physical keyboard layout is QWERTY (no further details though), but when I contacted them, they were unable to confirm the information and the site explicitly says that the tech specs. may vary and they do not guarantee it. Recently (don't know when exactly) they changed the device availability to 9.11.2009 from something near to mid-october.

I'm gonna purchase the device in the UK.
+ standard non-crippled QWERTY physical keyboard layout
- intl. warranty, high price, even higher price due to additional shipping or travel expenses