Why you should wait for the next version. The iPad may be the web's darling and the genesis of a new product category but its shortcomings and some ugly bugs are rearing their heads within days of the product's release. For all its geek gadget appeal and innovation, a look at the spec sheet and Apple's support forums reveal a less than perfect device. Here's a dozen reasons to not buy an iPad. 1. No USB Lacking USB input, the iPad becomes a locked down device where the only peripherals you can use are ones that link through Apple's proprietary...