Simple Choice plan Update:
http://www.tmonews.com/2014/03/50-si...datatethering/
+ Free international texting from USA** to all but the Maldives, St. Helena, and Wallis and Futuna
+ 115 countries -> 122 countries free data roaming (TBA, includes Afghanistan)
Takes effect April 1

+ Domestic plans are also updated - $50 Base plan now comes with 1GB data.
$70/month users should hit up link for details on whether to opt into the new $80 plan starting March 23

** Press release states "T-Mobile is the only US wireless carrier to deliver unlimited international texting to virtually anywhere - now from the United States and over 120 countries and destinations around the world - at no extra charge" though the graph shows "Stateside International Texting" so will need some clarification
http://newsroom.t-mobile.com/phoenix...334&highlight=

Props to jspira for posting it first http://www.flyertalk.com/forum/trave...l-texting.html I just happened to come across it googling for some Simple Choice countries

Just be aware that there may be a hard credit pull for new postpaid subscribers
http://www.flyertalk.com/forum/22249071-post348.html

Interesting things happening overseas, too:
If you'll be going through Germany, Aldi Mobile just updated their prepaid roaming EU data package to 120 MB/7 days for 4.99 EUR
http://www.prepaidgsm.net/forum/showthread.php?t=8438
Aldi has prepaid LTE on band 3 (covered by Verizon 5s) as it is on E-Plus network
http://www.prepaidgsm.net/forum/showthread.php?t=8448
Their country list does differ from TMobile's and interestingly covers Martinique and Guadeloupe in the Caribbean.

Three UK also updated their Three like home last year to include roaming for USA, Austria, Australia, Denmark, Hong Kong, Indonesia, Italy, Macau, the Republic of Ireland, Sri Lanka and Sweden.