ja.net's December newsletter mentioned two launches relevant to eResearch:
Lightpath: "a centrally managed service which will help support large research projects on the JANET network by providing end-to-end connectivity. It includes the UKLight service for fine-grained circuit provision and extends it to include whole wavelengths across the JANET optical transmission infrastructure."
Aurora: "a dark-fibre network to support research on photonics and optical systems. It will interconnect research groups at the universities of Cambridge, Essex and UCL, with access to intermediate locations along each fibre path where additional equipment can be sited. This is a national facility funded for two years operation by HEFCE via JISC, and if projects require it, the JANET Lightpath service can provide circuits for use as an access mechanism to other locations on JANET, and also internationally."