I would think there are more cell phones than toilets every country. Cell phones are generally a 1:1 thing and toilets a 1:Many.
Not really. Most households in the developed world, will have two or more toilets nowadays, but there's also toilets in workplaces, and public toilets.
In my last job (a fairly typical customer service/back office admin type thing), when someone else left, I inherited the task of dealing with updating a series of spreadsheets with loads of really crappy macros in. It had to be done once a week, and had to be perfect every time. One part of it involved cleaning up the names of a load of financial advisers in the spreadsheet - the same company's name would crop up many times over, but written differently. It was generally fairly easy to tell who each one should be, but it took me over half an hour each time, and was a very dull task.
Now, having learned Perl fairly recently, I knew that this was an obvious job for regular expressions. So I found out how to use regexes in VBA, and wrote a function that contained a dictionary with the keys as regular expressions that would match the appropriate names, and the values as the names they should be. With this, I was able to do a boring task that took about half an hour a week in about thirty seconds flat.
From my experience in that job, there were a lot of tedious tasks that could have been made a lot easier if people knew at least the basics of coding.
As a first choice, I recommend getting an anthology of some kind. The problem with getting a novel of some kind is that if it turns out you don't like it, you're stuck with it regardless, whereas an anthology of short stories means that if a particular story is dull, it doesn't matter because you won't be reading it for long. I recommend The Mammoth Book of Best New SF, which is a collection of short stories that gets released each year in around August/September (most recent one is number 24), and is inexpensive, but also a very dense book, and the quality of the stories is consistently good. I also liked The Mammoth Book of Apocalyptic SF from the same publisher (worth it just for Cory Doctorow's "When Sysadmins Ruled the Earth" and Alastair Reynolds' "Sleepover").
Novel-wise, I'd recommend virtually anything by Ian McDonald, who largely specialises in SF with a third-world setting. His book River of Gods could be described as a kind of Gibson-esque cyberpunk set in India, although that really doesn't give it justice as this makes it sound derivative when it's anything but - he's also produced a great book of short stories in the same future India called Cyberabad Days. Adam Roberts is also an excellent author, and I'm very fond of the sci-fi work of Richard Morgan, particularly his Takeshi Kovacs novels. Charles Stross has also been mentioned elsewhere, and I'd recommend his work. If you're not put off by hard SF, Alastair Reynolds is an excellent author, especially House of Suns and the Revelation Space series.
"A car is just a big purse on wheels." -- Johanna Reynolds