Mmm . . . no. Let me lay it out for you:

Nokia contributes code to existing community projects. Unlike Google, they don't go off and create their own closed-door projects whenever possible (examples like icd2 generally exist because the existing options didn't fit their requirements well enough and would've cost too much to make work). In fact, Nokia is one of the biggest drivers of mobile development in Linux. BlueZ, Mozilla, ConMan, oFono, Telepathy, GStreamer, kernel, GTK, Qt, and Scratchbox (to name a few) are all projects where Nokia or Nokia-financed contractors are major contributors in their development (especially in mobile directions). Note the only major commercially viable open source GSM stack is a Nokia/Intel project.

Unlike Google, Nokia works well with upstream. Chris DiBona's comments about their relationship with the kernel at the Linux Foundation Summit last month were revealing. He thought they were one of the best behaved companies in the industry here, and Nokia is clearly kicking their ***. Nokia is a good open source citizen that understands open source isn't there just to be abused.

Nokia's nothing like Google here—they're very nearly everything that Google pretends to be, in fact. You need to look only as far as the kernel to see how well Nokia is doing at the whole open source thing.