Dashboard for iPhone?

Ok, it seems that if Apple wont do nothing about it after the release of Palm Pre and (in some aspects) it’s supperior OS, some people decided to take the matter in their hands. People like Steven Troughton . Just one question , well two questions : how sluggish will the device be with this osx widgets like add or app how should i call it? and if you got quickgold installed, what do you do? The final product must be too dammn good and useful for me to remove quickgold and install dashboard.