While I don't have any need for HDMI output on my phone, I applaud Samsung's efforts to add differentiating features. That said, adding an HDMI port falls short of the type of innovation to which I referred in my original comment.
Look at the following photo and tell me that Samsung didn't completely rip off the iPhone's look and feel, right down to the icon layout:
http://www.gadgetfolder.com/wp-content/uploads/2011/02/Samsu...
Samsung had an opportunity to innovate in a way that would make the Galaxy S2 look and feel nothing like an iPhone and instead look and feel like a new, innovative product. They clearly didn't do that.
Comments like "My G2 has a back button unlike the iPhone" or "But the icons have square corners instead of rounded corners!!", in my opinion, completely miss the point. I'm not claiming that Samsung copies Apple's products down to the last molecule/pixel, nor do I believe that Samsung is incapable of adding ports/buttons that Apple chooses to omit.
The point is that Samsung is clearly trying their hardest to make their products look very similar to Apple's products. I personally believe Samsung should try to imbue their products with their own brand design/identity.