I thought Net10 and Straight Talk were the same company underneath it all when you peel back the layers.
Straight Talk is just available now at Walmart, and Net10 is widely available.
T-mobile's $30 plan is easily the best deal, but what I realized is that
voice minutes still matter, at least enough such that when you only have 100, it's usually not enough. Configuring Vonage or a free voip app is not only a hassle, which I could live with, but the quality is deal-breaker bad. It's a combo of "what" "what" "what did you say" or "I can't hear you". It's unprofessional to say the least. Only would Skype has acceptable voice quality, consistently.
I also realized that I hate wondering if I've gone over my 100 minutes for the month, and if I have, knowing that I"m paying 10 cents per minute.
I also was in a 3G refarmed city and T-mobile was completely inconsistent. I'd still get Edge right in the city center, and hopped back and forth alot. I've been all around and in no way, shape, or form for an iPHone is the 3G refarmed such that you'd get what they claim--3G everywhere in refarmed cities. It's very spotty.
And of course Edge is now officially unusable. You can check email, but there are sites that just plain won't load. I used to not think this, but I was on T-mo for 5 months and many mobile sites were just timing out. You'd do certain actions (check email, download an attachment, look up a google map address) well before you'd need the actual info (akin to booting up your windows computer and then going to brush your teeth)...after all that I just realized, this is just not worth it. Really, it isn't, esp for the few months that I've gone over 100 min.
Now if I had an Android phone or one that had T-mobile's native bands the $30 plan may be a diff story. But I'm still not ready for Android since I think any of the good phones don't have pure Android (a must after I made a mistake since in no other way are you going to get a solid upgrade, ever), and they flagships are all way too big to be one-handed.
So off to Straight Talk for a month, and it's been solid. Speeds have been way faster and I can talk and text for however long I want. I'd say that it's worth it.