The wave of amazed astonishment today at Microsoft actually announcing an innovative mobile OS really should be shared with this.
"Fusing" Maemo and Moblin seems about as straightforward a process as merging Android and Ubuntu Netbook Remix. Sure, they're both based on a Linux kernel, but... isn't that about all? They have entirely different UIs, different software stacks, and are targeted at different classes of device.
Both Moblin and Maemo have looked very promising on their own, and I hope this is the right decision for both of them. It just seems very strange for Intel and Nokia to attempt this.