Yes I hadn't read what was being promised; if using Airmax flavour of this make, the CPE (station) end will do anything up to aggregate 150Mbps on a near perfect link*.
So "up to 60Mpbs" is certainly possible as the maximum above is equivalent to variable e.g. 75/75 90/60 (*) when no-one else is transmitting / receiving significant amounts of data on other stations sharing the same access point as you.
"Repeaters" can be a little confusing as a term - if we are talking about relay sites without their own fibre backhaul.
The peak speeds above can be achieved if a relay site has a backhaul radio (sometimes a higher licensed band or optical link), separate from the radio(s) of access points that further subscribers connect to. Otherwise if the relay site is a single device, capacity is halved (or worse) as usual by WDS repeating or similar.
Anyway - for capacity would be nice to see more affordable MIMO 3x3 or even 4x4 stuff (in n) on the market.
As for the future I think 802.11ac will be being actively researched, depending on if Atheros have any equivalent chipset suitable for production or if there would have to be a switch to something else like Broadcom.
The risk with the ac stuff will be in space in the 5Ghz band, whereas with current 20 and 40MHz widths you can still find usable channels outdoors in the UK, if links start relying on 80 or 160MHz widths that will be eaten up much quicker whereas if designs which add capacity via the extra spatial streams available it would not be so bad.
(If the market goes as with 2.4Ghz, many consumer devices still go with cheaper single antenna designs they can label it 'n' and quote the maximum data rate for 40Mhz, but that spans too many channels for multiple neighbouring network to perform well).
prompt $P - Invalid drive specification - Abort, Retry, Fail? $G
prlzx on n e w n e t: ADSL2+ / 21CN at 3.5Mbps / 800kbps