What is the currently supported Apple-compatable bluetooth adapter?

Question

I just purchased an Apple Wireless Keyboard and an Apple Wireless Trackpad for my Mac Pro (early 2008). I have an Asus Bluetooth USB Dongle which I use to connect the two devices through and everything seems to be working fine, except that neither device will wake my Mac Pro from sleep. As you can imagine this would cause me much grief.
I searched though the forums and found that there is a checkbox in the Bluetooth Preference Pane (By the way, currently running OS X 10.6.8 but I'm going to upgrade to Lion in a few months). In the Advanced... menu, I noticed that there is an "Allow Bluetoothe devices to wake this computer" checkbox but it is not selected and worse grayed out and unselectable. According to this article, when this box is grayed out it means that the setting is already in effect (See Section 10, Bullet 3). Well this is now really baffling.
After more research, I discovered that if you didn't purchase your Mac with Bluetooth already installed, then you need to use an Apple-supported Bluetooth USB Adapter in order to use some Apple-specific functions such as iSync and Wake From Sleep. I bet you can deduce that my Asus USB Dongle is not the supported device. According to this Apple Support Page, only the D-Link DBT-120 USB Bluetooth adapter (rev. B2 or later) is designated as such. So I continued my search.
The DBT-120 itself is not an expensive part, as I could find it anywhere from $12 to $60, but my is it ugly and big. But according to this D-Link page, the adapter is at it's End-of-Life as of May 1, 2011. Sigh.
Being that it is now several months later than that, does anyone know what the replacement Bluetooth USB Adapter is that will support Apple-Specific functions such as Wake From Sleep?

Answer 1

I just purchased an Apple Wireless Keyboard and an Apple Wireless Trackpad for my Mac Pro (early 2008). I have an Asus Bluetooth USB Dongle which I use to connect the two devices through and everything seems to be working fine, except that neither device will wake my Mac Pro from sleep. As you can imagine this would cause me much grief.
The problem is not your BT adaptor.  Almost any USB BT adaptor is "compatible (I use a IOGear GBU421).  The problem is it's, well, a usb adaptor.  It's a chicken and egg problem.  You have an adaptor plugged into usb.  But if you sleep your machine there's not power on the usb so the adaptor is turned off.  No power, no usb, no adaptor, no way for a BT device using it to wake the machine up.
I can see your "grief".  I use a wired keyboard so pushing any key on the keyboard will wake my machine.  I also know that unplugging and plugging the dongle back in will wake the machine.  But that is some "grief" waiting for the devices to repair with the BT.
One solution would just be to get a cheap wired usb mouse.  It's probably a good idea anyhow as a backup for the "moody" BT anyhow.  Then just click that mouse to turn you machine back on.
Another scheme, and this is just a untested theory, is based on the reasoning that any active operation (clicking a key, plugging unplugging something) on the usb wakes the machine up.  So perhaps a usb switch would have the same effect.  Specifically I am thinking of this usb A/B switch.  Perhaps just plugging it into a usb port, even not switching anything, is sufficient to wake the machine up.  But like I said it is only a theory.  Hey, a cheap $9 mouse is easier!