Saw this over at DSLReports, AT&T VDSL2 Line Bonding Trials Slip Into 2009 - Modem issues resulted in several year plan delay... - dslreports.com
'We recently spoke to AT&T about offering faster U-Verse speeds at greater loop lengths via pair bonding, the telco insisting that things were on schedule for 2008 (after originally targeting 2007). Privately though, analysts told us that the testing for VDSL2 line bonding modems wasn't going so well, and the technology probably wouldn't be ready until later in 2009. Telephony Online (who for some reason decided to start requiring registration) confirms that AT&T trials of bonded VDSL2 have officially slipped into 2009, surprising nobody. Theoretically, bonded VDSL2 may be able to provide 40Mbps at 5,000 feet but that's yet to be proven in the field.'
'We recently spoke to AT&T about offering faster U-Verse speeds at greater loop lengths via pair bonding, the telco insisting that things were on schedule for 2008 (after originally targeting 2007). Privately though, analysts told us that the testing for VDSL2 line bonding modems wasn't going so well, and the technology probably wouldn't be ready until later in 2009. Telephony Online (who for some reason decided to start requiring registration) confirms that AT&T trials of bonded VDSL2 have officially slipped into 2009, surprising nobody. Theoretically, bonded VDSL2 may be able to provide 40Mbps at 5,000 feet but that's yet to be proven in the field.'