The more JWs who own tablets/smartphones the better. Tablets/smartphones are usually owned and used by one person. If no one else is looking at where one goes on the internet, more JWs will feel less fearful about visiting websites like JWN - may be even during meetings.
The advantages for the WTBTS to encourage using tablets/smartphones are it may reduce printing costs in developed countries, it would allow the WTBTS to use streamling video for the GB to "Properly Feed" (indoctrinate) JWs more often, and if it discontinues its printing operations totally then the WTBTS can revise what it writes instantaneously and there is less likelyhood that JWs will notice. I wonder if the Warwich complex as a video studio to feed the flock.
Peace be with you and everyone, who you love,
Robert