PDAs. - ASUS MyPal (which I have and it still works) had much better battery life than any of the smartphones I ever owned. - It had a consistent interface th

PDAs. - ASUS MyPal (which I have and it still works) had much better battery life than any of the smartphones I ever owned. - It had a consistent interface that wasn't a confusing clusterfuck of random shapes and expectations. - The hardware was durable and extensible through compact flash slot. - I could install software on it without going to a centralize store or going through some elaborate jailbreak. And while there wasn't a million free apps for it, there were good free apps, and finding them was actually easier than finding something on Google Play.