Free £2 ($3.37 USD) Amazon Android App Store voucher Maybe it's just me, but Amazon is on fire with all these great free vouchers and deals! If you haven't caught any of the previous offers, be quick and get a free $2 British pounds (or $3.37 USD) voucher that can be spent at the Amazon Appstore for any Android app available. There's lots of free apps out there, but there's some great paid apps that I would otherwise never pay for - but can now get free :)So there's a few caveats - but this offer can be used by anyone (regardless of location). The apps work on any Android device (so it's not just limited to Kindles or Amazon tablets).You have to redeem the voucher by 11:59pm on June 18, 2014Voucher can be used on app and in-app purchases, but cannot be redeemed against in-app subscriptions.It can only be used only on apps, you can't use it towards products. View the apps avail…