NIlishasema, the only way we can have startups hapa is when people start learning other languages, there's too many PHP and Java programmers, these languages do not inspire a startup culture, if you go to a place like lets say Nairobi, you will find so many people know other languages like Ruby, Nodejs etc, these are the languages most people here in Tanzania need to master if we are ever going to have a sustainable 'tech economy'.
Why? because when you learn one of these languages, all you will ever want to make is apps, with PHP you will want to make websites. Java takes too much time to create an application with it, most people end up doing android apps which most of them are just toy apps, like soccer apps, bible, dictionary blah blah, these apps don't even wanna make someone want to invest in, they are just good for trying out your android skills