As we know, Raspberry Pi is not the only development board based on the principles of promoting science, technology, arts and math (STEAM). Plate that more direct competition makes to the Pi is Banana Pi, with best hardware, and now has been renovated with new and exciting features...
In early 2014 it was presented a new board with best hardware than Raspberry Pi, undisputed queen with 3.8 million units sold to date.
Banana Pro is an upgrade of its predecessor with more possibilities: SoC Allwinner A20 with Dual-core ARM Cortex-A7 (ARMv7-A) 1GHz Mali400 MP2 GPU and 1GB DDR3 SDRAM.
Now use microSD and SATA 2.0, WiFi 802.11 b/g/n (rtl8189es) and composite audio/video joined in one Jack. We now have 40 pins to connect with the outside world.
It seems that the new plates fever development has just begun and the necessary renewal of existing augur a promising future in this world to develop interesting projects at very low cost.