Everything Everywhere’s spilled more details on its 4G hopes and dreams. That £1.5 billion investment is aiming to get a small scale LTE launch by the end of the year — subject to Ofcom’s say-so. The lucky epicenter of for the future of mobile communications in the UK? That’ll be Bristol, which will begin its trial on 1800MHz spectrum from April. It’s already tested out the 800MHz in Cornwall, which is apparently better suited to rural coverage. But before we hit those dizzying fourth generation speeds, customers on the not-so-unholy union of T-Mobile and Orange will also benefit from more HSPA+ upgrades across the network. Coverage across the network-sharing carriers currently stands at around 60 percent, but Everything Everywhere aims to reach full coverage before the close of 2012. How’s that London trial going, O2?