The chapel is precious to the Holy Father as it is used during his annual spiritual retreats as well as for the homilies given during Advent and Lent. The chapel was completely redone with over 600 square meters of mosaics on the walls and ceilings as a gift to the Holy Father for his 50th anniversary of ordination to priesthood. It was designed to incorporate the theological essence of both the west and east, the "two lungs" of the Church.Here's some photos of the Chapel.
The altar as it stands now, taken during the Papal Lenten spiritual exercises given by the very beefy Giacomo Cardinal Biffi, Archbishop Emeritus of Bologna. You can clearly see that the mensa is larger and less squarish but there is no sign that the altar had been pushed back towards the wall. Note the addition of the tabernacle and the 6 candle sticks. Somehow though, no one noted that the pews had no kneelers. Perhaps the Curia likes to kneel on the floor? [Good Master Blogs has pointed out the kneelers in the second row which I had missed. That should teach me to blog when I'm under medication =)]
Here's the Lectern in the Chapel. I'm sure the Easterns don't have ambos like these.
Some of the mosaics.
Click here for more about the Chapel from the Knights of Columbus.