this. I noticed a significant battery life increase after the first few days. The reason? I wasn't playing with it all the time and I had everything tweaked the way I want. A lot of apps by default assume you want everything on and always connected, which causes the battery life to be shorter.
This article is incorrect. I've used a 3GS with iOS 6 up until recently when I picked up my nexus 4 and I use a MVNO. I've been on straight talk for quite some time and have had no issues. I've used this site unlockit.co.nz and downloaded the profile to make the changes. To my knowledges these are just files you could create with the desired APN settings and host up on your own personal computer via nginx or apache and browse internally to download/install.
To create a straight talk APN profile on my nexus 4 I needed to have a sim card installed in the phone. For some odd reason Android OS does not allow one to access the APN settings area without a sim card in the phone.
They have some pretty amazing stuff. I recently attended one of their webinarsa and received a free AP + License. I used to push Ruckus because I was really familiar with them. Meraki is hands down a much better product.
user: \[email protected] password: password server: m.hotmail.com