I've been getting this software upgrade message on my phone (it started a few days ago) which I'm assuming it has to do with ICS, right? My problem is that I don't know if I should upgrade or not. I tether a lot using FoxFi and I don't know if that will work after upgrading. I've read all sorts of sites and I'm not able to find a definite answer to my question. Some people say yes, others no, and some others maybe. Perhpas it's dependent on different configurations/versions or something else? Here's what I have: Samsung Galaxy S Blaze (T-Mo) running android version 2.3.6 (T769UVLF4), not rooted. I've also installed on my phone FoxFi (v. 1.95), FoxFi Key (FoxFi paid version, v. 1.02), FoxFi Addon (v. 3011), and PdaNet+ (v. 4.01). So, my basic question is will FoxFi work if I upgrade to ICS (v. 4.0.4)? If not, is there any other tethering app that will work? Also, some people say that they have not noticed any real changes after upgrading, so should I upgrade at all? I'd appreciate any help you can give.