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| QuantumSTEP
| iPhone SDK
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| Available for Developers | continuous progress since 2003 (mySTEP) | beta now, final June 2008
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| Frameworks | Foundation, AppKit, Small WebKit, PDFKit, IOBluetooth, X11Render, SQLite | Foundation, UIKit, WebKit, Core Audio, OpenAL, Core Animation, OpenGL, SQLite
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| SDK cost | free (cross-gcc, etc.) | free (by registration only)
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| Simulator | not required (100% same source code) | included
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| Development Systems | Mac: Xcode 2.4 or later, Interface Builder, Xtoolchain
Linux: Project Center, GORM coming | Intel Mac: Xcode 3.1, (Interface Builder coming), Linux: no
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| Minimum gcc | 2.95.3 (with Obj-C 1.0) |
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| Distribution of your App | free and open as you like and need | only through „App Store“ at 99$-299$/year + revenue sharing
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| Developer Program | none, but www.gnustep.org | appears to be initially limited and US only
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| Availability | since 2003 (mySTEP for Zaurus) | Beta: now, finally June 2008
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| Devices | Sharp Zaurus, OpenMoko, Acer n30, more to come | iPhone, iPod Touch, (more to expect, e.g. Tablet?)
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| GUI-Design | Interface Builder | by Code (IB coming)
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| License | LGPL | NDA
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| Restrictions | none imposed by project | type of applications is restricted (i.e. no download of other executables)
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| Installed Base (E2008) | 10k ... 1 Mio | ca. 10 Mio
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| Backed by | FSF GNUstep project, quantum-step.com | Apple
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