I use and like both KT & T1 and only bought T1 when price was $79 at Best Buy.
Sony T1is much quicker and easier to find wanted book using collections which is books sorted by meta data tags that are included with epubs. Mine has 2228 books and 172 collections. Books library can be sorted by date, title, author, file name or last read. Sorting by author might be by authors first name unfortunately unless corrected by Calibre. It reflows text in PDF books making some more readable. Books can show cover thumbnails with title under or just title list with instant display change. Changing how books are sorted takes long time with 2228 books and can't do anything until sort is completed. It uses android OS and is easily rooted. I have not rooted mine yet. Good web browser.
Check out reviews & try one at Best Buy or Walmart.
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