Meh, I'm pretty pissed at the devs for consolizing it.
Duke Nukem is a PC series at heart. Shitty Console mechanics (two weapon select) don't belong on PC Series.
This is a worse insult to Duke Nukem than UT3 was to the UT series.
And yes I know that I'm not exactly old enough to have been a gamer when DN3D was 'hip', but I consider myself a fan of older games. (HL1, Giants: Citizen Kabuto, Armed and Dangerous (GCK and AND are both great games that didn't get as much attention as they deserved.)) Let console-style games stay on consoles, and let PC-style games stay on PC's.
Unfortunately, this is where gaming has been going for a while. I believe they may of also did this for "realism", but either way.
Luckily, the 2 weapon mechanic isn't really a hindrance to the game. Weapons are fairly well scattered so if you gave up your shotty for the Freeze Gun then realize you want your shotty back, it's not that long before you can swap back.