Well that's good. Usually they get bumped down to an hour or an hour and a half.
Hopefully they won't squander than time with having Iwata talk for 45 minutes or showing off games everyone knows about liek they usually do.
Plus, they have a lot of stuff to show off, such as 3DS, Zelda Wii and a host of promised games (Sin and Punishment, Dragon Quest IX, Metroid Other M, etc)