Samsung to bring the Galaxy Pocket Plus soon to Europe. (S5301ZKAPRO) This information came from SamsungWorld.nl and Samsung KIES through a leaked rom. The Samsung GT-S5301 leaked today. Samsung mostly use number 1 for a plus version like we know from the Galaxy S for example.
The current Galaxy Pocket uses a 2.8” screen, 2 Megapixel camera, Bluetooth version 3.0, Wi-Fi and a 832 MHz processor.
Samsung already announced the Galaxy Pocket Duos a couple of months ago. (GT-S5302)
A nice detail to know is, the Galaxy Pocket Plus (GT-S5301) uses Android 4.0.4. Which could mean the current Galaxy Pocket with Android 2.3.6 would be able to get an update to Android 4.0.4.
Of course this is just speculation.
There is no more information available at the moment about the Galaxy Pocket Plus. (GT-S5301)
We only know the rom is from October and is specially for Belgium.
Below the Galaxy Pocket (GT-S5300)
Update research from SamMobile confirms. Cori Plus ( Cori = codename Galaxy Pocket)
(CORI PLUS: GSM850/900/1800/1900, WCDMA 2100/900) (From service Manual)