I have an iphone 4, am happy, but time to upgrade. I dont use a lot of apps, mostly (>95%) of my use of the phone is exchange server integration of calendar and mail for corporate use. No games. When looking at both the samsung galaxy s3 and the iPhone 5, i like the gs3 hard product. I have no idea about the integration with exchange but people tell me it is fine Apps are similar on both... i like itunes intergration (I have 2 macs and an iPad) so the apple prodcuts work well together. Any advice?