Ovum predicts that emerging markets will account for 40% of smartphone shipments by 2017.
Jan Dawson, chief telecoms analyst at Ovum, suggested Amazon might have felt forced to make the move.
Google Android downloads will top those for the Apple iPhone for the first time, Ovum adds.
FORBES: App Downloads To Grow 144% This Year; Android Leads Apple
Adam Leach, principal analyst at Ovum, believes that the platform will attract short-term interest from existing users.
Eden Zoller, an analyst with research firm Ovum, said the move was an obvious one for Paypal to make.
But Jeremy Green, analyst with research firm Ovum takes a more sceptical view.
Jan Dawson, senior telecoms analyst at Ovum, said home was the "next best thing" to creating a Facebook operating system for mobiles.
Ovum expects compound growth of 20% a year from 2011 to 2015, driven by strong growth in subscription music services.
This is the biggest fine of its type to date, said Jan Dawson, chief telecoms analyst at research firm Ovum.
The costs to implement VoLTE are difficult to determine, said Jeremy Green, an analyst with London-based tech consulting firm Ovum.
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"Users don't want more advertising or tracking, and Facebook wants to do more of both, "said Jan Dawson, an analyst at Ovum.
WSJ: Facebook Shows Off New 'Home' Software for Android Smartphones
Tony Cripps, analyst at research firm Ovum, thinks Google might benefit from the fact that many already use its myriad services.
More detail on how Twitter could be integrated with mobiles would have been useful, said Eden Zoller, principal analyst at research firm Ovum.
BBC: Twitter dismisses $10bn Google deal and talks up mobile
Mike Davis, a senior analyst with research firm Ovum, thinks the latest stand-off says a lot about the developing rivalry between the two firms.
Adam Leach, principal analyst at research firm Ovum, calls the new system "well-designed" and says the new phones should appeal to existing BlackBerry users.
"It's all about holding on to users, preventing them from spending too much time on rival social networks, " said Mark Little, principal analyst at Ovum.
To be sure, Autonomy will have to compete against Microsoft, which has bought FAST, a Norwegian rival, says Madan Sheina of Ovum, a market-research firm.
Matthew Howett, an analyst at market research firm Ovum, said Ofcom's consultation was welcome, but he questioned whether it would help operators launch 4G services quicker.
Adam Leach, a principal analyst at research firm Ovum, said Google's business model was to offer free services in order to draw people into its other offerings.
Matthew Howett, from the Ovum consultancy, strongly criticised the length of time it had taken Ofcom to get the auction underway, but said "everyone" was to blame.
"The Q5 could be a very significant device for the company because there is a significant opportunity for high-quality low-cost smartphones, " said Adam Leach, devices analyst at telecoms consultancy Ovum.
According to a study published by tech consultancy Ovum, WhatsApp is the world's third most popular social messaging service after Facebook Chat and Google Chat.
Mobile phone app downloads will grow 144% this year, to a total of 18 billion, according to the research firm Ovum, up from 7.4 billion apps in 2010.
FORBES: App Downloads To Grow 144% This Year; Android Leads Apple
Technology consultancy Ovum suggested that demand for the format was proving particularly strong in emerging markets where most customers could not afford both a phone and a tablet.
Mark Little, principal analyst at research firm Ovum, told the BBC at the time that he was "underwhelmed" by the search facility but could see commercial potential in it.
"After more than five years in the making, finally the schedule to award spectrum for 4G appears to have been agreed, " said Matthew Howett, an analyst with research firm Ovum.
"A lot of what they're doing is putting data together and creating information to give a better customer experience, " says Joe Dignan, a chief analyst for public sector technology at Ovum.
"What Firefox is trying to do is make the web the app store and bring the openness of the web to phones, " said Nick Dillon, senior analyst at the consultants Ovum.
BBC: First Firefox phones revealed by Mozilla and Geeksphone
Steven Hartley at Ovum Telecoms Strategy said at the time that, while mobile capacity was being upgraded at transport and crowd hotspots, spikes in demand at peripheral sites could prove disastrous.
"For Facebook the main challenge is not just to grow in terms of numbers, but more importantly to deepen and enrich engagements, " said Eden Zoller, principal analyst at tech research firm Ovum.
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