Those sound similar but they are very different from each other. Exactly, I try to take your context into account and deliver you just the information you need. Information or a transaction you need delivered to you over the Web. It is a Web service that is able to benefit from the context of your location, your calendar, your finances and other information about you to deliver you the right information at the right time and space. Sun One is Sun's architecture for starting today with a view to provide Smart Web services tomorrow.
Smart services are Web services with context added.
It's a guiding philosophy for both engineers and business people. For engineers, it says open standards are the key to success in the future. The future is going to be massively interconnected and in a massively interconnected world, it's pointless to try to do anything other than open standards. The best way to think about the Sun One architecture at the moment is it is a positioning guide for standards and product implementation. It will help select the products and standards that are going to positively contribute to your future instead of run you into a dead end.