[General Accessories] damonous:
I would advise not getting your hopes set too high on the Wimm One. I've just sent mine back for refund to Amazon, after a terrible weekend experience with it. This is definitely NOT ready for prime time.

I've had many previous experiences with bluetooth devices, and trying to pair 'finicky' or unusual devices. For about 2-3yrs now, I've owned Sony Ericsson BT watches (which really are the bomb, if not for the horribly-unpredictable lifespan of the OLED displays), and I've paired with Xperia X1, X2 WM 6.1/6.5 phones (multiple ROM styles on X1) and LG Optimus 3D (US & Euro ROMs, Android 2.2 & 2.3) & Xperia Play.

I've also had a very picky JVC car stereo with BT (KD-NX5000), which required gtrab's X1 ROM in order to successfully voice-dial (while maintaining BT watch connection). I've also played with PSP-Go BT pairing in the past...

...all of which I mean to illustrate that I'm not a newbie at difficult BT connections. But I can also now spot a train wreck a mile away, and know what 'minimum operability' should be for a BT device. And, while perhaps you'll get different mileage from your particular phone, here's my experience:

LG Optimus 3D (actually, the 4g Thrill, but running the very stable LG 2.3 Gingerbread ROM) and the Wimm One

Out of the box, the Wimm is not intuitive. When attaching to wifi, it will background download any firmware updates, but if you miss a push notice, you won't realize until you go to reboot it that an update is pending. Running 1.03xxx firmware, you can then utilize the Wimm Companion app on Android to select and push apps from the beta Wimm Store to the device. You associate (via the wifi internet network relationship) the Wimm to your app via a code. At next scheduled or forced sync, you'll get your new apps. Although, there is no outright notice on the device. You generally have to let it 'sleep' and then when you wake it up (in color LCD mode), you'll see your app updates.

So far, so weird (but ok). Now the fun begins: BT pairing!

All initial signs seem normal, and it's not a problem for my LG to 'see' the Wimm and pair in the list (and in Wimm's menu). But, you cannot initiate a connect via the phone. Only clicking the 'connect' button in the Wimm's menu will (hopefully) actually activate the connection.

I say 'hopefully', because it wasn't always "true". When 'properly' connected, the BT symbol in the notification tray of the LG will show pairing.... but what's wrong with this picture? --It's using the Phone Audio BT profile! Meaning that you CAN'T simultaneously pair the Wimm with a headset, car stereo, home BT phone, etc. at the same time, because the Wimm is hogging the audio for no good reason.

In comparison, my SE BT MBW-150 uses a non-audio connection and works perfectly with OpenWatch, which means that the watch can be paired at the same time as having audio streamed to a headset, my Clarion car stereo, or VTech BT tabletop phone.

The Wimm troubles don't stop there: pray that you don't need to reboot your phone (at least in the case of the LG), because you'll need to completely wipe pairing on the phone & watch and start the pairing setup all over again to get it working right.

And, I also had several instances where I had pairings setup but did not intentionally WANT to activate the connection...and yet the pairing clearly was impacting my ability to even receive texts on my LG. (I sent many texts from my Xperia Play to the LG to confirm this; both phones on ATT, so it's very unlikely to have coincidentally been the network...on more than one pairing occasion.)

On top of all that, the Wimm Companion also has its own display of what the connection status is, and that may or may not align with what's in your phone's BT panel, or what you're actually observing. There were several times when the connection was actually 'working' (albeit commandeering the audio), but the Wimm Companion showed it to be disconnected.

To add vinegar into the wound, apparently Wimm's plan to recoup some cash is to sell watch bands, because the pictures don't do justice to how lame the rubber band looks. You'll need 2 screwdrivers to remove the band, and then have to drill/modify a metal band (if desired) to fit.

NOT READY FOR PRIME TIME. And, I'm sorry, but if this thing is going to suck your phone's audio stream just to get text and phone call notifications, ...it's not ready for any serious 'developer', either.

Which leads to my final thought: the I'm Watch might not fare much better. If you dig deep into their FAQ page on their website, it says that it connects with your BT audio profile. (!) Which explains the nonsensical idea of plugging headphones into the I'm watch to tap into the meager 64mb or 128mb data cache to play music from.

I really think these companies have lost plot. I want a device on my wrist that supplements my phone; not one that overtakes it.