Preliminary specs for BlackBerry’s (BBRY) first entry-level BlackBerry 10 smartphone may have just been revealed. BlackBerry blog BlackBerry Empire points to multiple unnamed sources in claiming knowledge of the upcoming “R-Series” BlackBerry phone, which will reportedly resemble a smaller BlackBerry Q10. Apart from the QWERTY keypad, the site claims BlackBerry’s first low-end BB10 phone will feature 8GB of internal storage, an SD card slot, 1,800 mAh battery and a price tag between $300 and $400 before taxes and subsidies. The phone will reportedly launch in the late summer or early fall and a sketch of the back of the R-Series handset follows below.