Last year, when YouTube decided to Rickroll all its users – i.e. send all video links to Rick Astley’s “Never Gonna’ Give You Up” – there was a sense that April Fool’s pranks in the tech world had reached their peak. How could anyone top the ultimate self-referential prank that took a universal web joke and ‘made it official’? But if this morning is any indication, that’s far from the case. In fact, it seems that the blogosphere is positively lit-up with hundreds and thousands of stories claiming to be true, but are most definitely not. Google changing their name to Topeka? YouTube introducing ‘TEXTp’?…