I do a lot of online banking and other personal tasks online so it is obvious that my N900 comes in handy since I am able to do all these on the phone. The problem is that I have all my personal informations saved on there so I don't have to enter them each and every time I go to the site.

Is there a way to have a master password, similar to firefox, so that those secured sites can be accessed by entering the master password and be good until you close the current web browser, similar to firefox?

If not, it would be nice to implement it. Also, is there a way to clear your browsing history?

you can lock your phone so that it requires a password to unlock

you can clear browser history in the details/options portion of the browser

Anyone able to get TrueCrypt working on N900?

I understand the phone can be locked but not when you have siblings who want to play games on the phone... and may end up checking their facebook page on the phone. You cannot lock the phone.