This will require a bit of effort on your part

The information comes from notes for a project of mine which I post in bits and pieces
First, my recent response to captain ahar
here.
Since ahar is in America, I skipped PAL releases in the list, sorry.
arcade side:
2006-10-27: Mushihime-sama Futari (Cave)
2006-11-15: Karous (Milestone)
2007-04-26: Muchi-Muchi Pork (Cave)
upcoming:
Radio Allergy for US GC was cancelled
Nucleus HD (EU PS3 network) was scheduled for release a few days ago?
Raiden IV (AC, Moss) is officially out tomorrow
Super Stardust HD (EU PS3 network) expected around 2007-06-15
Fuujinroku (PC, next Touhou game from ZUN)
Shin Chuuka Taisen (Wii, Starfish)
New Triangle Service game for arcade
Otomedius (AC, Konami) is rumored for September or October
Söldner-X: Himmelsstürmer is announced by Play-Asia and that's all
Tenchi no Jyuusha (AC, Cave) is barely revealed, no dates yet
more like rumors amirite:
Last Hope NeoGeoCD version (NGdev)
Homura 2 (AC, Skonec)