Sneaky little issue pops up when you move away from iphone. Other iphone users that previously texted you won’t be able to text you the same way once you switch. This is because when you both were using iphones, the messaging system was not the typical SMS, but iphone’s messaging systems, native to it. So when you switch, those people will need to reconfigure your number in their phone’s messaging system to be able to contact  you. Dirty little secret, huh?