A japanese site reports that NEC are working towards a perpendicular MRAM cell using "2T1MTJ" technique. NEC are apparently using a 55nm process.
Details are not very clear as the translation is not so good... Hopefully more details will emerge soon.
http://www.nec.co.jp/press/en/0906/1705.html Please find above press release!
NEC Develops Scalable High-Speed MRAM Technology Suitable for Sy
http://www.nec.co.jp/press/en/0906/1705.html
Please find above press release!