Qualcomm has said to figure out how to lock down devices. Microsoft may rely on a trusted boot system that could make it hard to swap OSes.

It would be "absolutely possible" for Insyde to offer a boot environment that allows a user to choose between Windows RT and Android, said Dean McCarron, principal analyst at Mercury Research.

"The reason everyone cares about UEFI is it prevents untrusted software from hijacking the system," McCarron said. With the Insyde UEFI firmware, a dual-boot system would come "pre-hacked," McCarron said.

In this case, Insyde would add another secure boot layer for Android in the trusted environment alongside Windows RT. The boot options would be authenticated, making it hard for hackers to subvert the system.

Insyde provides firmware and tools to many top PC makers and might be able to make the dual-boot system a reality, McCarron said. The dual-boot option may not necessarily draw the interest of the end user, but it may attract device makers. Some may prefer to build tablets or PCs with one OS without intense customization at the boot layer, while others may want to offer multiple operating systems for user convenience.