bitGenerations are sort of the Touch Generations equivalent of the GBA; they’re small games focused on simple gameplay. There are 7 of them currently, divided into series 1 and series 2, and are all based on light and sound, lending them a cool techno-ish vibe.
At the moment, the website allows you to explore what the first series has to offer, consisting of Dialnex, Dotstream and Boundish, available on July 13th. Series 2 – Coloris, Digidrive, Orbital, and Soundvoyager – is available on July 27th. Both are Japanese dates, of course, although these might be worth importing, since NoA is unlikely to localize them.