Looks like Samsung Wave owners will soon be graced with an official firmware update to bada 1.2, supposed to make the mobile OS more responsive, and including Swype. The leaked software showed up on SamsungFirmwareWorld, but you have to register to retrieve it. It is clearly for GT-S8500, i.e. the original Samsung Wave.
The process requires an additional tool, thus don’t rush to update your Samsung Wave yet. Moreover, it looks slated for the European market versions of the handset. It won’t be long before it pops into your Samsung Kies software, so stay put for the official news.
via SlashPhone

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What are the system requirements (like CPU, memory) for the mobile device to install the new bada OS?
dude it is only for samsung wave GT-S8500 & not for any other phone so if u have s8500 than u dont need to concern urself for system requirements
my phone wave 525, can my phone upgrade to bada lastes version, how?
Hi I have s8500 but how can I update my oc from 1.0 to 1.2
this bada 1.2 are support for wave 525? (sorry for my english)
Hi,
Download the latest version for samsung kies and update the latest firmware with hi speed internet connection …
or create a samsung account and sign-in in your mobile with the WIFI
While trying to update through Wifi … in your mobile .. in settings – software update.. sign in and update to bada 1.2…before doing the update.. try to take the whole phone backup using samsung kies… in case of any problems u can restore the the backup it will safe to your moble … while updating the firmware don’t use the memory card…and let your phone memory free..
Thanks for all…
sure u can do…
try
I want to upgrade my S8500 to 1.2 but worry about getting the phone locked again?
it is used with T-mobile in the US and was an SFR phone in France (lousy interface full of crap from SFR!!!)
I’d like the original Samsung interface,any idea people?
EartH