I’ll try to write down all the feelings and impressions I’ve received since I’ve got my own BADA.
HARDWARE
Impressive. I come from a Motorola Milestone, 3,7″ and 854×480, but the AMOLED screen is awesome. The phone is slim and light weighted. The camera is great, much better than any other one I’ve already tried in Android. Recording video gives no lags. It has FM Radio, flash, and physical buttons for answering/hanging calls (don’t like touch buttons much)…

Samsung Wave
Battery lasts for long unless you use WIFI too much; I haven’t discovered any wifi power consumption option yet. I’ve been using the phone for 4 days without recharging, compared to the day that Milestone lasted is a great improvement…
It’s a way better compared to many Android phones, and cheaper; remember I’m talking about hardware… O.S and apps will come later
O.S.
What people usually forget is that a mobile phone is a PHONE; a phone must be easy for sending and receiving calls, texting; it should also give you the chance of having ascending tones, or control over the way it manages new text messages.
A month ago I was in a hotel room and wanted my former Android to wake me up in the morning; I sadly discovered that it had no way of ringing an alarm if it was powered off. As Android phones have a poor battery life, I had to leave my phone on “flight mode” and plugged in to avoid battery drain… awful…
BADA OS does what is expected to as a mobile phone. First impressions accessing the different options gave me the feeling of a complete system, thought from the roots to give the user a whole experience. The best phone is the one which you forget you’re using, because it’s “transparent” for you…
It boots in seconds; connecting the phone to any PC gives you 2 different drives, one for the internal and the other for the external card, which is not as common as anyone should think at first. Multitasking is a thing to be enhanced, but it seems it will be done with the next 2.0 version on February. There are sound profiles, calling gestures, etc…
APPS
There it comes the real Achilles heel of Samsung bada… Customers are complaining all the time because of the lack of some “killer apps” other platforms already have. And they are quite right; it’s not right to leave users without an official Twitter app (one that notifies the user and allows sending photos and whatever), Facebook, Dropbox, Whatsapp or whatever is overused by smartphone users.
As it happens in other platforms, users are not very likely to buy any app, even if it cost just 1 € so they want everything and free (As a developer I don’t understand why people want us to work for free, but it’s an already lost battle I’m afraid)
DEVELOPMENT
As a mobile developer, I’m always trying to put my hands on each platform in the market; I’ve already tested Windows Mobile 5.x and 6.x, Symbian S60v3 and Android. Now I’ve got BADA.
BADA is a good platform to develop in; it has plenty of documentation, a complete SDK and a professional app store for sellers. Maybe the timings for approving apps could be shorter, but that’s a way to ensure that there’s nothing that should not be there, compared to Android where everything can be published and there are plenty of nonsense apps around…
And that’s it. I suppose I’ve forgotten lots of things but more or less these are my impressions… Samsung Wave is great, BADA is great. Now let people know that and make this small community a bit bigger…