Again, with all due respect: I do not think this is a good solution. �It is making the launcher... no longer a launcher, and too much functionality has already been shoehorned into this thing.
Not to mention, on a netbook resolution, *four* icon slots is way too much - that's practically half the launcher!
I like indicators being on the screen edge - that's pretty much the only way they're useful - but shoving them in the launcher, and taking so much of the launcher's estate to do it, is just not a functional idea. �