Guys just check out PhotoAcute 2.....IT rocks!!!....The only and the worst drawback is that it takes quite a time to process.....
I stood at the same spot and took photos using Photoacute....flexicam (in 1600 x 1200) and our own Nokia's camera app......in both day n nite modes....The photos taken with PHotoacute were comparatively smaller in size but very sharp...vibrant.....Nokia's 6680 camera app was much much better than flexicam in terms of image quality...

The major drawback of both camera apps : Where the heck is the flash option??