I want to buy an iphone but I am afraid of moments when I dont want to take such an expensive phone with me (festivals, going out to drink, hiking, ..). I am afraid of damaging or losing it. Are there any people who switch out there sim cards to a different phone or use some kind of text/call forwarding app (if this exists?)? Are there other solutions? Who uses these: http://www.amazon.com/Micro-Normal-Adapter-Apple-iPhone/dp/B009B9YWB4 ?