I think you got this backwards. Tegra is a chip(set). So the relations are OMAP3 - Tegra, TI - NVidia, Nokia - [unknown]. I say unknown as no mainstream OEM showed/demoed any Tegra devices yet. NVidia just displayed a factory prototype, TI did that early 2008 or late 2007. Not sure what you are trying to compare the RX-51 and Nokia to.