Update: the patch is now live on Steam. Besides the previously mentioned changes, texture improvements are included, plus added dedicated server functionality, and more. Note you must enable the higher weapon limit in the options menu.
One of the major criticisms the community and ourselves have levied against Duke Nukem Forever is the lowly two weapon at a time limit. For PC players, that's soon to be upped to four in the single player campaign, despite 3D Realms' George Broussard saying previously it just wasn't feasible with consoles in mind. It's not unlimited as with Duke 3D, but we'll take it.
The patch to include this change will also sport an FOV option, VAC support, a push to talk option, plus "other fixes and improvements." A console patch is in the works as well, though the weapon limit change is "unlikely" to be included.
No ETA, but we'll keep you posted.