For those of you all who couldn’t download BlackBerry Navigator since there was no support for your specific device are now in luck as RIM has added support for:
Curve 9350/9370, Bold 9930, Torch 9850 and the Porsche Design P’9981 devices. Also if you are outside of the UK and want to be able to download BlackBerry Navigator, read this how-to.
Source: CrackBerry