So, 300 million plus slashed from the EGIP rail programme. Well I suppose all those motorways, bypasses and trunk roads need the cash, eh?
Mr Brown said the Scottish government had "revamped" the plans to deliver savings of more than £300m.
The reduced budget will mean that there will be no immediate increase in frequency of services between Glasgow and Edinburgh.
The planned electrification of Dunblane/Alloa services will also not be delivered in this phase of improvements.
These delays were criticised by the sustainable transport alliance, Transform Scotland.
Director Colin Howden said: "Today's announcement is merely a restatement of promises that the Scottish government has already made.
"What the government is actually announcing today is cuts to the Scotland's flagship rail project.
"Instead of the previously-promised six trains per hour, we're now only going to get four trains per hour. Furthermore, electrification will no longer reach Dunblane and Alloa.
"If completing these further phases is dependent on a new high-speed line reaching Scotland then the government is simply kicking these previously-promised investments into the long grass."
The Scottish Chambers of Commerce welcomed progress towards the electrification of the Glasgow to Edinburgh line but said the Scottish government's decision "to implement only a part of its original plans" was "disappointing".
Chief executive Liz Cameron said: "Whilst improvements in journey time, station facilities and the rapid acceleration of wi-fi capabilities in the ScotRail fleet are extremely welcome, EGIP was a project which had the potential to be transformational in terms of its impact on connectivity across central Scotland and, sadly, it looks as though this potential may fail to be realised.
"The new plans that have been announced fail to achieve the improvements in journey times that have been promised, fail to guarantee the pledged electrification of the network to Stirling and Dunblane and fail to deliver the six trains per hour between Glasgow and Edinburgh that business travellers have been demanding."