US cable operator Comcast has unveiled WiFi Ready, under its Xfinity Communities banner, challenging moves by T-Mobile USA and others to push wireless as an alternative to fixed broadband in apartment blocks. Comcast aims to eliminate the frustrating installation wait for fixed lines, for new residents of MDUs (multi-dwelling units). The new service is based around a pre-installed WiFi modem, which can be instantly activated by existing Xfinity Internet subscribers who have moved into a WiFi Ready home. Residents can connect their own modem to the existing coax connection if preferred. No vendor suppliers were named in the project. Despite the downside of a single ISP having monopoly ownership of an entire MDU, this scenario can make life easier for…