The Acer Aspire S3 has undergone a design overhaul. The 13.3-inch touchscreen laptop now takes several cues from its Aspire S7 cousin. The white-finish laptop sports the latest Intel Haswell chipset to bring it up to date for 2013, but also has a 180-degree fold-back touchscreen.It's a far cry from the brushed-aluminium finish and plasticky interior spec of the earlier S3 model. The new S3 touch has a back-lit keyboard and while the top isn't Gorilla Glass as per the S7, its sheeny finish still looks quality.READ: Acer Aspire S7 reviewThe screen can fold back to flat, purportedly as a means to show documents to colleagues or friends sitting opposite - a quick press of both command and the O keys flips the screen upside down to accommodate.There are two USB 3.0 ports which the earlier S3 model lacked, plus a USB 2.0 port on the opposite side. The model - which we've stacked on top of an S7 to show the size difference - is also relatively slender, which makes for a lightweight unit.The Acer Aspire S3 touch doesn't yet have an official price or release date. We anticipate it will ship from the end of July, as was originally planned, with a price around the \u00a3900 mark - a few hundred pounds less than the S7.