Memory cards have become an integral part of mobile life, from digital photo storage for cameras to PDA expansion cards. As the latest SD cards have grown in capacity in the past months, what makes one SD card better than others? Thanks to Curtis Walker, a contributor to Gizmodo, he puts the latest SD High Capacity (SDHC) cards to the test to figure out which one is head and shoulders above the rest. With capacities exceeding 2 GB, SDHC cards can now compete head on with the larger Compact Flash in terms of storage space. However, not all devices are capable of using SDHC cards, cards readers notwithstanding. Thus, most, but not all, SDHC cards come packaged with their own readers to address this problem. They are still relatively pricey since it is still fresh, but give a couple of months or so, for other manufacturers and prices to become more competitive. Here’s to a bigger and brighter future for ultra-compact and portable storage.