More Info Lenovo IdeaPad U300s review Lenovo's IdeaPad U310 and U410 Ultrabooks start at an inexpensive $699, weigh a little more than the competition Lenovo U310 and U410 Ultrabooks now available worldwide starting at $749 For a while there, the march of Ultrabooks was comprised almost entirely of halo products: skinny, relatively expensive things designed to help Intel and its OEM partners make a good imp