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Title: Upgrade was a downgrade
Review: I had a 548 and upgraded to the 568. Overall I liked the device but the issue with the screen filling with dust negates everything else. I had to replace it once but the new one is slowly accumulating a dust layer under the screen and that's with it kept in a zippered case whenever it's not in use. I would have replaced it again but it means reinstalling all software and ebooks and everything else I've added. I didn't even check the competition before buying this because I was so happy with my 548, I won't be replacing this one with an HP product. Very dissapointed.
