I'm a holo supremacist, myself. If I download an app and discover a patchwork iOS job lurking within, right smack in the uninstall bin it goes. Tolerance is granteed to those apps that simply have yet to update to 4.0 guidelines from the old school 2.3 look.
The more I use properly designed, guidelines compliant apps on my Galaxy Nexus, the less tolerant I become for slapdash or iPhone ported apps. Google's new design language for Android apps is beautiful and distinctive, and apps that use it are starting to stand out. #actionbar4ever