tkaiser, could you give an input about a wireless energy efficient storage platform to choose? Like in your post with around 1W (or better) consumption. I've been playing with a ZSUN Wifi card reader running OpenWRT and it's performance is less than desired. Thinking of tuning it to make a storage comparable to TP-link MR-3020 abilities (they share the same platform, the popular AR9331 SoC) but maybe it's a waste of time and there are platforms with same or better energy needs and times better performance (FTP/SMB over Wi-Fi). Main purpose is a battery powered wireless storage for using out in the field. Size matters but power matters most.
Any thoughts would be welcome.