This is my first ever post, so I hope I'm doing it in the right place. I love, love, love how the Nook and Kindle apps let me synch among my ebooks when I read in different devices. The problem is that it only works with books I buy from them. Is there any app out there that will allow me to synch my own pdfs or ebooks? I heard that Comicrack does something like that, but it works only with comic formats. Thanks!