The Labour leader's pledge to give councils the power to act against the "crack cocaine of gambling" will increase the pressure on the PM to intervene.
So long as Miliband retains the support of around 20% of 2010 Lib Dem voters, the Tories have no hope of victory.
The Labour leader appears determined to avoid the challenge of fixing state services without spending more money on them.
The danger for Miliband is that his "cost-of-living" attack will be blunted as the economic recovery accelerates. Labour must offer a bigger vision.
How Labour plans to meet its target of 200,000 new homes a year by 2020, including "use it or lose it" powers to tackle land hoarding and a "right to grow" for councils.
Never mind snapping yourself at Mandela's memorial, the Labour leader has appeared with Lily Allen and Joey Essex.
Having threatened to resign from the last Labour government over the project, Miliband is now merely "sceptical".
Miliband is running out of time to inspire people with more than just a feeling that he has noticed how expensive life has become.
Rather than following Osborne and denying that living standards are falling, Cameron sought to hold the last Labour government responsible.
Just as Gordon Brown was outplayed by Cameron during the expenses scandal, so the PM risks suffering the same fate now.