New track frames in London shops now

@VV: enough with the katana frames already!

@GA2G: it's been done already.

Anchor (http://www.bscycle.co.jp/anchor/productstop.html) - Bridgestone's beautiful track bike, in standard (http://www.bscycle.co.jp/anchor/02products/pd.html), sprint (http://www.bscycle.co.jp/anchor/02products/fpcps.html) and TT (http://www.bscycle.co.jp/anchor/02products/fpcpt.html) (see Euro-Asia Imports)
Atherton (http://www.flash.net/%7Ewheelthg/page4.html) - Boyd Atherton makes a fine track frame in North Texas
Aquila (http://www.aquilacycles.com/) - steel and aluminum offerings from Toronto, Canada
Benotto (http://www.benotto.com.mx/) - Mexico's finest. Available through Trackbikesource.com (http://www.trackbikesource.com/)
Bianchi (http://www.bianchiusa.com/) - Pista (http://www.bianchiusa.com/site/bikes/road/13_pista.html) is a classic, 2003 designis identical to the FUJI TrackPro, only in flat black and celeste
Bilenky (http://www.bilenky.com/models.html) - custom singles (Record (http://www.bilenky.com/prod26.html) and Daily Planet (http://www.bilenky.com/prod29.html)) and tandems (http://www.bilenky.com/models.html) from Pennsylvania
BTA Track Bikes (http://www.usauzziesales.com/) - Bike Technologies Australia, official team bike for: Australia, New Zealand, South Africa and China
Brew Racing Frames (http://www.brewracingframes.com/) - Steve Garn makes a damn fine track frame in North Carolina
Calfee Designs (http://www.calfeedesign.com/index.shtml) - order the Pista Royal Track - light like no other.
Campbell-Cunefare (http://c-ccycles.com/) - compact frames - official frame of the USPS Masters team
Cannondale (http://www.cannondale.com/bikes/03/cusa/) - is back in the track frame market with their CAAD5 "Major Taylor" (http://www.cannondale.com/bikes/03/cusa/model-3PR3K.html) model
Cervelo (http://www.cervelo.com/) - famous for the P2T
Cinelli (http://www.cinelli.it/eng/bici/index.html) - classic track frames if you can find them
Colnago (http://www.colnago.com/) - Trialtir imports the Master X Light Pista (http://www.brittonbikes.com/colnago/master-pista/pista-mxl.htm), Master Pista (http://www.trialtir-usa.com/2002-colnago/master-pista/master-pista.htm), and Dream Pista (http://www.trialtir-usa.com/2002-colnago/dream-pista/dream-pista.htm)
Condor (http://www.condorcycles.com/) - steel and aluminum from England
Corima (http://www.corima.com/) - high-tech carbon fiber bikes and wheels from France.
DEAN (http://www.deanusa.com/index2.html) - titanium one-off track customs
Eddy Merckx (http://www.eddymerckx.be/) - Elite Piste is the current ride of Marty Nothstein
Ellsworth (http://www.ellsworthbicycles.com/) - Ramona, California
Gios (http://www.gios.it/) - pista (http://www.gios.it/cgi/pista.php?lang=eng&page=frame) from Italy
Harry Havnoonian (http://www.hhracinggroup.com/trackbikes.htm) - makers of ALL sizes of track bike - from 16" to 700c wheels
Ibis Bicycles (http://www.castellanodesigns.com/) - (BANKRUPT) John Castellano will do repairs and warranty work.
FUJI Bicycles (http://www.fujibikes.com/) - the Track/Track SE (http://www.fujibikes.com/road/bike.asp?category_short_name=road&myArray=1,2,3,4,5,19,6,7,8,18,16,9,10,20,11,12,13,17,15,14,54,55,56,57&myArrayID=17), and new TrackPro (http://www.fujibikes.com/road/bike.asp?category_short_name=road&myArray=1,2,3,4,5,19,6,7,8,18,16,9,10,20,11,12,13,17,15,14,54,55,56,57&myArrayID=10) in aluminum.
Javelin (http://www.javbike.com/) - their "Frisco (http://www.javbike.com/2002new/htm/bike_track.htm)" frame is popular
KHS Bicycles (http://www.khsbicycles.com/index.html) - entry-level steel track bikes like the Flite100 (http://www.khsbicycles.com/page125.html).
Land Shark (http://www.landsharkbicycles.com/) - TIG welded beauties from Oregon, USA
LOOK (http://www.lookcyclesusa.com/) - the French National Team rides their KG 396 - good luck getting one
Litespeed (http://www.litespeed.com/) - titanium at its best - track frames fall under the 'custom only (http://www.litespeed.com/english/technology/custom_frames.html) ' category
Marinoni Bicycles (http://ourworld.compuserve.com/homepages/FBeauchemin/) - classic steel frames from Canada.
Pinarello (http://www.pinarello.com/index2.php) - aluminum and steel classics out there
Rohloff (http://www.rohloff.de/english/index.html) - Chains, hubs and related stuff.
Serotta (http://www.serotta.com/) - I've got one. Love it.
Spectrum (http://www.spectrum-cycles.com/) - Tom Kellogg's work is lovely
Spicer Industries (http://www.spicercycles.com/) - 6061-T6 aluminum track frames, complete parts selection.
Terry Dolan (http://www.terrydolan.co.uk/) - Liverpool England
Torelli (http://www.torelli.com/) - classic Pista Speciale (http://www.torelli.com/torelli/specfrms.html) in Columbus steel
Vitus (http://www.vitusdirect.com/) - aluminum track bikes
Waterford (http://www.waterfordbikes.com/) - straight-ahead design track bikes from Wisconsin, USA.