How about SL to have the option to be run in an Explorer window instead of downloading the program?
Now, with this, probably not all the features you would normally get by downloading the program because of bandwith and such, but for people who are out of town from their normal computers, and can't download the program, so they can still get on and be apart of the community?
Much like what meebo has done, by opening it up for people to sign into their IM's without having to download the programs and messing with others computers..
Just a thought? Anyone concur?