Trezor Beta Wallet is now behind a login wall. The login and the password seem to be the same for everyone. They are sent after subscribing to the newsletter which covers new, experimental features. In the background of the new landing page, there is a sneak peak of upcoming visual overhaul of Trezor Wallet. You should take a look at it.
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Well, that's strange. Why would they push updates to the web wallet if they're going to deprecate it and release a desktop wallet soon?