Google - Beginning November 22, 2011, we will end support for the Gmail App for Blackberry (installed native app). Over this past year, we've focused efforts on building a great Gmail experience in the mobile browser and will continue investing in this area.
But you can still go back to the old layout if you prefer.
Overall, this looks like a decent UI update for people that use multiple Google services.
Spam runs rampant on Gmail, but you have options.