There is a great series of Catholic bible commentaries coming out called A Catholic Commentary on Sacred Scripture. It has numerous endorsements from bishops and cardinals. It has a Kindle edition. Unfortunately, the translation it uses is the NAB; what I do is have my RSV open beside it. I have read the first bit of the Kindle sample for the Gospel of Mark, and it provides very interesting historical, patristic, and theological background. Also the text and notes are interspersed, unlike the Ignatius Study Bible which puts the notes in footnotes, so it should make for easier reading (and listening) on the Kindle. Check thou it out.
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