Yes please
I'd like a software update to my (very late) 2010 model, please (KDL46NX713). It was certainly costly enough to expect that it would remain "supported".
I don't care about NetFlix, but I'd like the update to allow my Media Remote app on the iPhone to work (as it does on the 723). I'd like the 3D capability to work from USB sources (so that I don't have to connect my 3D Bloggie through HDMI, but can store the files on a USB stick instead) and I'd like an update to the other connected services.
It's not too much to ask, and I'm not going to buy a new net-connected TV to get these feature, but it doesn't seem beyond the realms of reasonable expectations, does it?
Having said all of this, the TV is still excellent and a very suitable monitor for cable TV... just don't forget about your premium users. Hey, look, it's got a WiFi and LAN connection and can access the internet for those updates, so get them developed and pushed out, please. And if NetFlix wants to drill Sony to get their service propagated to as many customers as possible and Sony could include those upgrades as well, then thank you NetFlix/Sony.