Could BMW partner with Toyota on hybrids?

BMW's Hydrogen 7 at NAIAS

Yesterday, I read on article on Car&Driver that has really been bugging me. BMW May Partner With Other Automakers on Tech Development claims that BMW is seeking technology partners to save costs.

Already, BMW has a partnership with GM on hybrid vehicles, and a 4-cylinder engine partnership with PSA Peugeot Citroen SA. On its own, BMW has developed clean diesel and is working on hydrogen and fuel cell vehicles.

So, for what other technology is BMW seeking partners? Or, is BMW not happy with some of its current partnerships?

Now, I am purely speculating, but could it be that Toyota's hybrid powertrain would be a better fit for BMW's vehicles?

I have a lingering feeling that GM optimized it's dual mode hybrid powertrain for larger vehicles, such as the Yukon hybrid or the Tahoe hybrid. Now, GM could easily prove me wrong with a hybrid car, but why didn't GM plan a dual mode Malibu hybrid launch with its hybrid SUVs? Thus far, hybrid cars are selling far better than hybrid SUVs.

Is GM just SUV crazy, or are there issues with the dual mode hybrid powertrain when it comes to small cars, such as cost-effectiveness versus efficiency?