Their augmented reality app ScanSearch (see Metro Scanner too), which allows you to scan movie posters, CDs, books, barcodes or search for coffee, stores, etc. has received a bump to v1.4. No changelog is noted but it seems a little bit quicker to us and we've always been impressed by this app.
The other addition in LGHangul, which is a text entry tool for Korean characters, allowing users to enter text in Korean into SMS, email, Bing and Google search--something we think will make a lot of people's lives easier.
Of course both are only for LG phones and can be found under the LG Marketplace on your device.