I like the idea a lot. Nice work!
One slightly negative impression: while there are already lots of good submissions and it looks like people are using the heart button, there are very few feedback comments so far. I particularly like the idea of a smaller, more tight-knit group of HNers giving each other feedback, since it seems nearly impossible these days to get any attention for a Show HN post without preexisting internet fame or a voting ring, so I found it a bit unfortunate that Breakpoint seems be starting out more in the direction of show-off gallery than a place for substantive discussion and critique in the HN vein. I'm not really sure how to remedy this. Perhaps placing more emphasis on discussion vs. screenshots could help?