Interesting reading on the power of BE.
I think the only real "competitor" (and I use the phrase loosely) seems to be Eastern Airways, who out of NCL have carved an operation that seems to work to BHX, ABZ, SOU and CWL.
The company I work for, for some reason always books me on Eastern rather than BE (to southampton). So despite their significantly higher prices, they have found a niche that allows them to compete on older, smaller and more restricted aircraft.
That market may exist in BOH, for the right operator with the right aircraft. A small 20seater with high frequency to somewhere like MAN is not going to warrant BE starting their own operation out of BOH. They might lower their prices from SOU a bit, but thy aren't going to dedicate a Q400 to BOH (and dilute their current SOU-MAN service loads).
OK so its not groundbreaking, and not going to set the aviation world alight, but the market may well be there, but i doubt its there in the present economic climate.
RTG!