Notifo vs. Prowl for iPhone push notifications

Notifo : application de notification pour iPhone / iPad gratuite pour le push Twitter et d'autres servicesI asked on Twitter yesterday if anyone would like to compare the "Notifo" service to the "Prowl" application for handling push notifications to iPhone and other mobile devices.  No one answered, and so here's my brief rundown comparing the two.

If you don't already know about push notifications, a brief primer: they're basically just like text messages, except they can be routed/categorized in ways that make them useful to individual applications on your phone.  Instead of getting a generic SMS text message when someone DMs you on Twitter, you can instead use push notifications to have the Twitter app on your phone realize a new DM has come in and alert you according to your personal settings.   When you "view" a push notification, you can be taken to a web page or app that's relevant to its content.  Best part: the messages don't count against any text messaging limit (for now).

I started using Prowl about 9 months ago.  My three main uses were:

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iPhone iOS4 IMAP mail syncing problems

Market musicianI offer this account of trying to address a known (and I would say, severe) bug in the iPhone 4 mail software, in case it's helpful to others:

Ever since I upgraded my iPhone to IOS4 (the latest version of the phone's operating system), the Mail application has been flaky when it comes to syncing mail messages via IMAP. Duplicate messages, empty/blank messages, messages dated 12/31/1969, messages that are deleted and then re-appear, and so on.

At first I thought it might be my phone hardware, which had been cursed from the beginning (a story for another time), but after that phone died and Apple replaced it with a brand new one with fresh firmware and settings, and it STILL happened, I was convinced it's the software on the phone.  Other people are having the same issue all over the place.  But it can be hard to make Apple believe this - said the Apple Genius Bar worker at the Apple Store in Chicago, "they're probably all just using the phone wrong."  Wha?

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Using the iPhoneOS SDK on older PPC Macs

I'm just getting started with developing applications for the iPhone / iPod Touch, and one of the first real hurdles I encountered was that Apple didn't make it easy by default to use their iPhoneOS SDK on non-Intel Macs. With some Googling around I was was able to find a variety of articles that mentioned workarounds, but the comprehensive solution was spread across lots of blog post comments, forum postings, etc. So, for my own reference and hopefully as assistance to anyone else who might be in the same boat, I'm consolidating the steps here.

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