Trusted Reviews – A new combined report from IDC and App Annie has discovered that mobile games accounted for 75 per cent of the handheld gaming market last year. Despite significant growth for the Nintendo 3DS and a strong software line-up for the handheld, it was still totally outmatched by the spending on mobile platforms. Overall, spending in the Android Google Play Store increased in Q4 2014 by four times when compared to the same period the year before. iOS App Store spending also increased, doubling the figures achieved in Q4 2012 this year. In total, global revenue generated in…