Robyn Eckhardt writes: When we were on Penang two weeks ago we re-visited eighty-year-old coffee shop Toon Leong. It's been 18 months, but we found the same vintage decor, same vintage crowd, same vintage owner - though he and his son now wear matching 'uniforms' consisting of navy blue shorts and lighter blue t-shirts.The coffee is still as good as ever and, now that we've ranged around a bit, I feel almost qualified to pronounce it maybe the best in Georgetown. It's rich and smooth, with an intensity bordering on chocolatey, and served over ice it's reminiscent of a great Vietnamese cafe sua da.Places like Toon Leong draw us back to ...