The wide array of proof-of-concept blockchain projects is not addressing the need to evolve the entire blockchain, which would enable not only mainstream adoption but enterprise usage as well. New distributed app frameworks are being developed to solve this problem.
Among the top cryptocurrencies and industry-leading blockchain companies, most blockchain implementations are early stage. Consequently, many blockchain projects amount to simple proof of concepts, with few high-impact prototypes or even MVPs to speak of. Due to the large number of test cases currently out there, the evolution of blockchain technology remains slow, with widespread difficulty around enterprise IT integration and a serious dearth of developer-friendly, easy-to-use software tools.