Linaro 15.04 has been released with Linux 4.1-rc4, Linux 3.10.79 and 3.14.42 (LSK), and Android 5.1_r3. The Ubuntu image is now based on Vivid instead of Utopic.
Android and Debian builds/images have been released for Hikey’s 96boards, Ubuntu Vivid and Android builds have been setup for Qualcomm’s Dragonboard 410c. A new platform, Socionext M8M, has also show in Linaro changelog. I could not find details about M8M, but Socionext is a “new company that designs, develops and delivers System-on-Chip products” and focuses on “imaging, networking and other dynamic technologies”. Their latest press release mentions a 4K media processor with build-in HDMI 2.0 Tx and Rx, so maybe M8M is based on that processor, but I can’t know for sure as they have several chips.