http://www.wmshop.cz/en/Modules-GSM-...archparam=pls8 modem 113EUR plus shipping http://www.digikey.com/product-detai...100-ND/2695734 SoC/CPU ~50US$ http://www.netcomponents.com/sitemap...00CA-A506.html 1GB RAM + 512MB NAND POP chip: probably 25EUR http://www.jorjin.com.tw/#!wg7351-00/c1dnh WLAN+BT+FM module ~30..40EUR http://www.handy-ersatzteil-service....er_Tastur.html kbd 18EUR http://neo900.org/stuff/joerg/N97-ca...7_06-13-16.jpg main camera ~15EUR http://neo900.org/stuff/joerg/random-media/DSCF0308.JPG 8-layer & 4 -layer PCB some maybe 50EUR http://www.digikey.com/product-detai...3CF-ND/4316075 32GB eMMC storage 66US$ or http://octopart.com/mtfc64gjddn-3m+wt-micron-29101638 64GB eMMC storage 95US$ or the original one with much doubt about possible counterfeit or defect chips: http://www.aliexpress.com/w/wholesal...g8d8eba12.html cheers jOERG