IPod that put "1,000 songs in your pocket." Apple did not develop the iPod software entirely in-house, instead using PortalPlayer's reference platform based on two ARM cores. The platform had rudimentary software running on a commercial microkernel embedded operating system. PortalPlayer had previously been working on an IBM-branded MP3 player with Bluetooth headphones. Apple contracted another company, Pixo, to help design and implement the user interface under the direct supervision of Steve Jobs. As development progressed, Apple continued to refine the software's look and feel. Starting with the iPod Mini, the Chicago font was replaced with Espy Sans. Later iPods switched
IPod Touch (5th generation) were sold with the iPod Touch include the lanyard for the iPod Touch loop (not available for the 16 GB model). Andrew Williams from "TrustedReviews" noted the 5th generation iPod touch's common features with the iPhone 5, while praising the design and the respectable connectivity. Graham Barlow of "TechRadar" commended the improved screen, more color variants, greater quality earphones and the iPod's light weight while criticizing the "reset" of the lightning port. Scott Stein of CNET praised the enhanced camera quality and design, but remarked that the iPod touch is still weaker and outclassed compared to other iOS devices. IPod