For the last fifty years 100,000's of M1 Garands and M1 Carbines have been sitting in Korean warehouses, many of which will now be sold to US collectors. AFP reports:
Washington has approved South Korea's plan to sell about 86,000 M1 and 22,000 carbines together valued at 130 billion won (108 million dollars), the ministry said.
The rifles used during the Korean and Vietnam wars have been kept at military warehouses, it said.
"The US government recently approved our plan to sell old M1 and carbine rifles, which were given to our soldiers as part of a US aid programme," a ministry spokesman told AFP.
The rifles are occasionally used by reserve forces for drills, he said without giving details.
The military will dispose of all its M1s but will keep about 640,000 carbines for reserve forces, the Chosun Ilbo newspaper said.
That means 640,000 more are patiently waiting in cosmoline to be shipped over stateside 
Many thanks to REMOV for the link.
These photos are of a prototype rail system for the Daewoo K2, which is the assault rifle used by the Korean army.

Click to expand. Photo ⓒ Chen “SMGLee” Lee. Used with permission.

Click to expand. Photo ⓒ Chen “SMGLee” Lee. Used with permission.

Click to expand. Photo ⓒ Chen “SMGLee” Lee. Used with permission.
I looks like a real improvement over the archaic standard K2 handguard.

Standard Handguard. Photo from Wikipedia.
Many thanks to Chen for the use of his photos.
More photos here.

The “Neon”?
It looks like Poland is developing their own version of the XM29 OICW concept, according to the MSPO 2008 website. It may or may not be called the “Neon”, Google translate is not great at best of times.
What makes the Polish concept unique is that the grenade launcher part of the weapon will, at this stage in the design, be able to be removed and swapped for a different caliber, either 40mm or 25mm.
I am going to predict that they will end up with one caliber and not bother with the complexity and cost of multiple calibers.
It has the usual fire control system to program air burst grenades to detonate at a certain distance.
I will be watching with interest to see what happens with this program. Sweden and Singapore are also developing similar weapons and South Korea will be fielding the XK11 Korean New Rifle in 2010.

XK11 Korean New Rifle
More information here (translated with google)
I have done my best to find accurate information about this firearm on the Polish MSPO 2008 website. I do not speak or read Polish so I had to rely on Google Translate. If I got something wrong, please correct me in the comments.