It seems to me that while some want to make them haters, Streamr and IOTA are not even competitors.

Understand the technology and the use case. IOTA features The Tangle, which stores transactions, is blockless, and scalable. They also hype the possibility of transferring value without any fees. Further IOTA is often described as an alternative blockchain. The aim is to build the consensus into the system.

Streamr is focused on none of that stuff. Their main function is tokenizing realtime data, "unstoppable realtime data". Blockchain? They're using an off-chain p2p network approach for speed and scalability. Streamr is about providing tools, a marketplace and the means to monetize the ever growing amount of realtime data being generated around the world.

The business organizations behind the brands are also non-competitors. IOTA.org is a not-for-profit. Team Streamr is entrepreneurial and very much focused on profit.

Streamr is already pushing their operational tool stack. You can try the Visual Editor and Streamr Engine today. IOTA says they are still in beta and not targeting to be production ready until late 2018. So the hiccups around security and deployment are part of their roadmap.

So it is still early in development for both platforms. They may turn out to be complementary or acquisition targets. Ths is the reality of where we are with the Internet-of-Things.

What will the market be for real-time data? What is the technical feasibility of a blockless, scalable, secure ledger?

Right now the market cap for Streamr is less than 2% of IOTA. So at this stage Streamr seems undervalued or maybe under-marketed compared to IOTA.

They're not competitors. The question is where will you put your money?