The Nairobi Stock Exchange now has a free Android app. Developed by Verviant, it is rather basic (download page), but show's the the equity day’s prices changes, and summary of some announcements. Still, it's a good start, and should be a work in process, and maybe investors will be able to track their portfolio's (still empty) and drill down to read more comprehensive announcements, and bond prices too.
The Exchange probably needs to address the issue of large PDf statement that companies fax in their announcements and which the NSE scans to their site - and replace these with some basic documents that they can upload to the main and mobile site.
Another NSE geared app is the Rich app (from the Nokia Ovi Store), that is however designed for the Nokia E-7.