IPF is not behind, it's ahead.
Do you see IPF as being a profitable venture at this point? Most of the money is made in Xeons. I just don't see how IPF can ever make up for the money sunk into it now that it won't be hitting mainstream computing which was an original goal of this architecture. It could have made up for all the investment had it been properly pushed into the mainstream earlier. AMD would have been put out to pasture if that happened as they have no cross license for it. Intel can keep it alive, and even grow the market niche, but I just don't believe it can be self sustaining.