The Guardian have released figures for their iPad product - 17,000 iPad subscriptions, an unspecified number of Kindle ones.

I was trying to work out if this is good or bad. It's bad, because that's a small number (£2m gross revenue p.a. before Apple's cut). But with daily print sales of 211,511 in June, that makes iPad 7.5% of (print+iPad) readership.

I wonder how that compares to the percentage of Guardian readers who own iPads... my gut would be plenty of room for growth. I'm curious about those Kindle figures, which would reach a different audience... and I wonder whether there's any plan for a paid-for Android product?

Update: after a chat on Twitter with Benedict Evans: there are apparently 5.5m iPads in the UK, so iPad ownership here is 10%; not all those iPad subscribers are UK, of course, but it's a useful comparison. Not sure if we could conclude that iPad ownership in Guardian readers accords with that though, according to their own stats on readership their audience is roughly average in terms of age and gender, but skews towards being better educated and more likely to be AB than most. Accordingly I'd expect iPad ownership to be way higher - double? - for them.

iSuppli have reported on their teardown of the Nexus 7 - $152 BOM, if you hadn't seen it already.

Interesting to see how the Kindle Fire BOM has dropped from $191 to $139.80, in the 10 months since it launched. I'm not from a hardware background, but do manufacturers generally launch with the intention of making low margin on early adopters and compensating for that with mass market take-up once prices are lower? If so, given the buzz around decent low-cost tablets, one could consider this low initial margin to be advertising.

How long does a device like this continue to sell for - a year or more? If the Nexus 7 takes the same path, then even sales of the low-end version should be generating a reasonable profit in 6 months time, or leave room to drop the price further if Apple come in low with a rumoured/FUDding (delete as appropriate) smaller iPad.

I also wonder what the "additional costs" iSuppli talk about would include - shipping, packaging (or would the latter be "box contents")?

Helen's hosting the latest Carnival of the Mobilists. I was please to note that it obviously costs more than $50 of Amazon vouchers to buy a good write-up from Terence Eden ;)

If anyone's interested and around Sussex University campus next Friday, I'll be taking part on the Postgraduate Poster Presentations in two capacities: I'm still technically on the Informatics Industry Liaison Board, and I'll be participating as a student this year. Hopefully this will involve a double helping of sandwiches.

First impressions of the Nexus 7 tablet (I took mine out today to see if it could substitute for iPad, in a full day of conference attending and note taking):

• Battery life is great. 34% left after the day.
• Form factor is great. Fits in a coat pocket, no need to carry a bag. Makes a surprising difference.
• All my usual apps (Evernote, Kindle, etc) work beautifully. Android's definitely catching up/caught up here.
• No 3G, boo. Means I will either have to tether, get used to caching stuff for offline use (Instapaper etc), or carry iPad around when I'm back in the UK: I use connectivity a lot, normally.
• The keyboard in landscape is a bit annoying: the space bar gets very very close to the "home" button, meaning I've often been inadvertently leaving an app whilst typing. Really annoying, I'm hoping I get used to it enough to avoid doing this.