If you are bothered by Microsoft's lack of HDMI support (which I personally am), might I suggest you politely contact Microsoft's Xbox360 hardware support and politely let them know of this fact.
Microsoft Xbox360 Hardware Supporthttp://support.xbox.com/eform.aspx?...ts&locale=en-us
Microsoft is company that listens to its customers. The more of us that clamor for HDMI support, the sooner it will arrive. Please tell Microsoft politely that VGA and component 1080p support does not work for a large number of popular 1080p TVs. The Xbox 360 is the only mass-market device I can think of that outputs 1080p over component while lacking HDMI. Many people complained about the original Xbox's large controllers, and they came out with a smaller version. Microsoft thought about skipping Xbox compatibility with the Xbox 360, but when people complained they came up with a partial emulator solution. Microsoft does listen, just make sure to contact them so that they will hear you. I already contacted Microsoft support about this awhile ago.
Be clear on this, this is NOT Sony's fault (or JVC). Many 1080p TVs do not accept 1080p over component, and VGA support for computers is not usually the primary application. Microsoft needs to address this issue, not TV manufacturers.