Does the world really need yet another Twitter client?

I'm working on a new to-do list application, and yes I do think the world needs "yet another" one. Are all the Twitter clients out there perfect? Is there one that fits your exact workflow, has all the features you want, and no bugs? If not there is space to innovate. Yes, the market is saturated but if you have a new idea, I say go for it. Even if your "perfect" new Twitter client is only perfect for you, hey, you now have a perfect Twitter client. Odds are, it's perfect for someone else too.

Yes. Why not? Who does it hurt?

I intend to write a Twitter client this year, since existing clients don't meet my needs:

* web app * multi-account support * rate-limit noisy accounts * automatic language detection for people who tweet in multiple languages

Sure, I'd love to find something that does this already. But I don't think it exists.

Also, do we need another answers site (Quora)?

or photo sharing site (Instagram)?

or search engine (Blekko, DuckDuckGo)?

I think he answers his own question:

  "it is probably quicker to write your own custom app than it is to try and work out if any of the existing apps fulfils your requirements."

1. Could you point out to a few such niches where there is "real need for software, but limited competition". 2. How does one go about finding such niches?

Most definitely NOT! You are absolutely correct!