I think it's fair to remind folks that those on this forum in the void between being on the teams who actually know what is going on and the general public that has been given little specifics about what is going on beyond "it's in the works." A lot of the information shared here is solid. Some is based in supposition. And some solid facts shared at one point may have suffered the effects of changed circumstances over time that make those supposed facts no longer accurate.
What I do know, or think I know, is that Sprint is on the verge of something quite spectacular here in Sacramento. Having been on and withnessed many large technology projects in my career, I can say there are many things that can get in the way of crossing over the finish line. I have seen projects go live before they were fully baked just to meet a deadline and suffer horrible post-live problems as a result of the rush to "git 'er done," projects fail to launch due to funding insufficiencies, projects delayed due to technical and resource constraint issues, etc.
Those who are suffering the obviously deficient services being delivered right now have every reason to be impatient. I am thankful for their testimony because it probably stopped me from becoming a Sprint customer yet (I'm still on Verizon with unlimited data on a deficient 3G device). I like they are hoping things finally come together in Sacramento soon because I would love to get me some unlimited tri-band LTE phablet goodness. I just hope I can limp along with my creaky 3G device in the meantime (and the wife is getting really impatient too).