Well, I have received the Microsoft 6000 Bluetooth keyboard and it didn't me long to know how it behaves. But first a few clarifications of the Apple Wireless Keyboard (and the results don't indicate returning the AWK, at least not yet).
As luck would have it, I actually own two different AWK. One is designated as a 2007 model and the other a 2009 model. The way that Apple differentiates them is the number of AA batteries required. The 2007 model requires three AA batteries and the 2009 model requires only two AA batteries. Unfortunately I have had a rash of alkaline battery failures that resulted in losing two Maglite flashlights and the 2007 keyboard (NOTE: if you are not using a battery operated device for a period of time, please remove the batteries). I was able to finally extract the batteries out of the 2007, cleaned out the housing and installed fresh batteries. It paired up just fine to the Droid X but it wouldn't process any keystrokes. I have not verified that it actually works paired to another computer but it did process the keys to pair it and there is an update that I haven't applied to this keyboard. The update may fix the keystroke issue but it appears to behave like a AWK that someone had described. The 2009 AWK will pair and will send keystrokes.
I don't have enough time and enough fiddling to say that both the 2009 AWK and the MS 6000 behave exactly the same, but so far they appear to behave nearly identically.
They will pair properly to the Droid X if you take them to their initial pairing state. They will work as you would expect a keyboard to work (I have noted a couple of minor issues with the shift key and the cursor but it is more of an annoyance). After something occurs (time, perhaps the keyboard goes to sleep, maybe the Droid X driver decides it isn't happy?), it ceases to send keystrokes. I have tried several combinations of reconnecting that I can think of and it won't connect. You then have to unpair the keyboard from the Droid X, put the keyboard back into pairing mode and pair it again. What I have noticed now is that they keyboard doesn't work for very long (i.e. you may be able to type a few words before it quits processing keystrokes from the keyboard OR it will repeat a character until you turn the keyboard off (and even in just two or three seconds, the Droid buffers up a lot of characters).
I have just powered down the Droid X and removed the battery for about 15 seconds. I am going to see what this does for it. Could it be interference from another Bluetooth device? Anything is possible. I do believe I have any other Bluetooth devices turned off or disabled and if it is interference, in my opinion it shows a poor implementation of the Bluetooth stack on the Droid X (and possibly others) because Apple and Microsoft wouldn't sell very many keyboards if they quite working at the rate that these have on the Droid X. Is it something at the driver level that is affected by something else that is running on the Droid X? Perhaps as I do notice hesitations from time to time.
I unpaired the keyboard and a headset, powered it off, removed the battery and I am going to leave it out of the media stand. The battery profile is set to performance. It paired up and initially working. I sent one message about 120 characters and started a second when it repeated an 'i' (the repeating character is not the same). This last scenario didn't work any better. It is so strange that it appears to work better once a day and then from there on it has a short connection or operation span.
In the end, perseverance will pay off. They (Motorola, Android, someone) will fix this issue. There is Android 2.2 that will be coming soon (I read about an early release in the Netherlands late this week). The Swype input method seems to be better than the two thumbed peck. I will keep trying things, looking for answers. I talked to tech support at Verizon Wireless, they recommended contacting Motorola which is what I will try next. There will be days that I will set the keyboard aside and not bother with it until I find something solid that works. I don't recommend burying (or returning) either the Apple Wireless Keyboard or the Microsoft 6000. Both of them are very nice keyboards and have worked well in other Bluetooth devices.