i noticed speed drop in d/l speed...
before GB update...d/l speed was pretty much same bewteen 4g and wifi...
but after updat...4g d/l speed gotton so slow..i thought i was in 3g connection..
I've noticed this as well. In addition to the slower performance browsing the web, I can't get the top end (>20 mbps) 4G speeds any more when I run a speed test at non-peak hours. While it's possible that the network is becoming more loaded with 4G phones, I've only noticed this post GB.
The update seems to have increased the liklihood of being on 4G, as I've only noticed a couple times where I've dropped to 3G. However, I've also noticed that doesn't mean the phone has a good 4G connection; on occasion, I get a time out error from any webpage I try to visit, and the data indicator in the notification bar shows exclusively outbound (green arrow) traffic.
They improved the ability to "hold" a 4G connection, but that didn't improve the quality of data connectivity in general in my experience.
EDIT: JerryF, d/l means download.