The salad days of the 3.5-inch smartphone are over BI Intelligence says-- phablets (aka smartphones with a 5-7-inch display) are taking over as the market trends towards larger quasi-tablet handsets.

According to the analyst global phablet shipments are to hit 1.5 billion in 2019 with a CAGR of 27% for the 2014-2019 period, nearly double the 15% CAGR predicted for regular smartphones over the same period. Phablets should make 59% of the 2019 smartphone market, up from 35% in 2014.

BI Intelligence adds phablets are already cannibalising global tablet sales-- and as tablet demand declines, phablet shipments should total three times as much as tablets by 2019.

How come oversized smartphones are so popular? One reason is larger displays allow for sustained on-the-go engagement on social networks and apps of the Facebook, Instagram and Snapchat variety. According to the analyst over 50% of phablet activity is tied to social networks.

DigiTimes reports global Q2 2014 graphics card shipments are set to fall by 30-40% Q-o-Q as vendor are suffering from excessive inventories, at least according to unnamed industry sources.

Apparently graphics card players and channel retailers are urging AMD and Nvidia should boost demand by slashing prices, but the two companies insist on reducing shipments in order to maintain profits and inventory-new shipment balance.

Further impacting graphic card sales is a drop in GPU demand for Bitcoin mining, the sources continue. Cryptocurrency production used to be a GPU-intensive activity, but a change in the difficulty of the mining process resulted in the reduction of need for GPU grunt.

The iPad is the second most important source of Apple income, following the iPhone with 20% of overall company sales. However a number of Apple analysts predict iPad sales have hit a wall and will soon go in decline.

According to Fortune 34 Apple analysts (21 Wall Street professionals and 13 amateurs) expect iPad sales declines of at least -0.7% Y-o-Y in the Q2 2014 Apple results report.

The overall consensus for Q2 2014 iPad sales sands at 19.3-19.4 million units. Some analysts are more optimistic (Asymco predicts sales of 21.8m with 12% Y-o-Y growth), while others are pessimistic (Braeburn declares sales of 15m, a -23% Y-o-Y decline).

According to Gartner as traditional PCs continue to fall and substitution from PC to tablet declines global 2014 combined device (PC, tablet, ultramobiles, mobile phones) shipments are to reach 2.5 billion units with 6.9% growth.

"Tablet substitution of notebooks will start to dissipate from this year onward as consumers and businesses align the right device with the right usage pattern," the analyst says. "As they do this, we will see where dedicated devices (such as tablets), or hybrid devices (detachable or convertible devices), fit in the overall portfolio of devices."

Meanwhile the device market saturates, meaning pressures on margins continue to increase and vendors look at different ways to cope. Either way prices will fall, even if customers also value useful device features such as better portability or connectivity.

Mobile phones remain the largest segment, with 2014 shipments reaching 1.9bn units with 4.9% growth. Gartner projects 2014 growth as coming from the lower-end premium and the higher-end basic segments. A lack of "compelling" hardware innovation only marginally extended 2013 upgrade cycles, but customers in emerging markets including MEA and E. Europe should offset weak(er) mature markets as they upgrade their devices.