AT&T has officially announced that it has now reached an agreement with international Wi-Fi operator, Fon, to share wireless hotspots between the two service providers for travellers both in the U.S. and overseas.

Following Verizon, T-Mobile and AT&T’s lead, Sprint has today announced its own annual upgrade plan, allowing subscribers to upgrade their handsets every 12 months, so they too can keep up to date with the latest and greatest smartphones on the market.

AT&T’s 400th LTE market went live last week, but that hasn’t slowed down the U.S. carrier who announced yesterday that it has once again expanded its super fast 4G LTE network – this time to 4 new locations. The announcement was made in a sequential series of press releases on the carrier’s website.

AT&T has officially announced that it will be adding Samsung’s ultra-affordable scaled down version of its flagship smartphone for 2012, the Galaxy S3 Mini, to its lineup. The handset will be available to purchase on the U.S. carrier starting Friday, September 27, for just $0.99 on any of AT&T’s 2-year plans.

Starting today, AT&T is rolling out an over-the-air update to all of its Galaxy Note II devices. The upgrade weights in at 165MB, and although it doesn’t bring any major software improvements, it’s still quite a significant update that we would advise any Note II owner to download.