While the ebook market sometimes seems like the least sexy segment of the digital world, it’s still a huge deal. After all, last time I checked, books were still a pretty big deal, whether in terms of how many people read or how many people many money off that fact. So while the arrival of Google’s new electronic bookstore may seem a little blah, it’s actually pretty important. Because, although it’s true a group of high school students could have arrived at a better name than the Google eBookstore, Google’s new cloud-based approach is not just their challenge to Amazon and Apple – it’s also part of…