It's not something I usually take a lot of notice about, but I remember last year my Dorset Nagas weren't producing any pollen and the flowers were just falling off. Then all of a sudden they were all fruiting. The chillies were extremely hot, but tasted awful. I'm wondering now if that could have been due to the being pollinated by my super chillies instead of by themselves.

I'm definitely no expert on this matter. If anyone has any more thoughts I'd like to hear them too.

No expert here either, but I'm pretty sure it doesn't work like that. Cross polination won't affect the fruits of the plant, but rather the seeds of the fruit of the plant, if you see what I mean.

In other words, say your Orange Hab got cross pollinated by, say, a bell pepper. You'd still get Orange Habs, but if you tried to grow new plants from the seeds of the Habs you might get strange results.