The world’s tallest building opens for business this week — if it can find any For years, Dubai boasted that whatever bling project it embarked upon, from carving its coastline into palm-tree-shaped resorts to building vast ski domes in the sand, it would be the “number one in the world”. After the credit crunch, however, it looked like the only record the Gulf city state would claim is the biggest boom and bust. Burj Al Arab hotel Tomorrow, though, Sheikh Mohammed bin Rashid al- Maktoum, the emirate’s ruler, will celebrate at least one global milestone he can be proud of...