Right now I use around 2GB/month on 3G... I haven't received any notifications from Verizon yet about me being in the top 5% or being throttled.
Edit: Looking at Verizon's 'Network Optimization' page, they aren't throttling 4G users on unlimited plans quite yet... So even if I was being throttled on 3G, I won't be any more.
Does Network Optimization apply to customers using 4G services?
No. We reserve the right to include 4G LTE users later, but right now this only applies to the top 5% of users with unlimited data plans using 3G devices. If you have a 4G LTE device you will not be affected at this time.
Network Optimization