I just switched to the 50/20 plan. When I run the FIOS speed test on my Mac using OS X 10.6.6, my speeds average 48/20, which is acceptable. Using the same Mac running Windows 7 Ultimate through Boot Camp, my speed drops to 32/24 (I rarely upload, so upload speed is much less important to me). I've run the FIOS Optimizer, as well as a couple of other internet speed optimizers, but the d/l speed doesn't seem to change much, if at all. I know that FIOS is providing the speed (as evidenced by OS X), but the Windows side of my computer is not taking advantage of it. Any other tweaks I might try to increase my d/l speed? BTW, if it matters, my computer is connected directly to the router, which is an Apple Time Machine. I don't use the Verizon router since it's not 802.11n capable. Prior to switching to the 50/20 plan I was on the 25/15 plan and my speeds were 25/25 on both OS X and Windows.
