Nintendo has plenty of original titles, it's only 2 N64 remakes versus 8-9 new games. That's comparable to the 1st party lineups GBA and had their first years, and way better than the port-heavy PSP was.
List! Ports/remakes are italicized and bolded.
Game Boy Advance (2 ports/remakes, 5 original)
- Super Mario Advance (Nintendo R&D2)
- F-Zero: Maximum Velocity (NdCube)
- Mario Kart: Super Circuit (Intelligent Systems)
- Advance Wars (Intelligent Systems)
- Golden Sun (Camelot Software Planning)
- Wario Land 4 (Nintendo R&D1)
- Super Mario Advance 2: Super Mario World (Nintendo R&D2)
Nintendo DS (3 ports/remakes, 11 original)
- Super Mario 64 DS (Nintendo EAD4)
- Ridge Racer DS (Nintendo Software Technology) published by Namco
- Wario Ware Touched! (Nintendo R&D1 / Intelligent Systems)
- Pokemon Dash (Ambrella)
- Yoshi: Touch & Go! (Nintendo EAD4)
- Polarium (Mitchell)
- Kirby: Canvas Curse (HAL Laboratory)
- Advance Wars: Dual Strike (Intelligent Systems)
- Nintendogs (Nintendo EAD1)
- Trace Memory (Cing)
- Metroid Prime Pinball (Fuse Games)
- Mario Kart DS (Nintendo EAD1)
- Mario & Luigi: Partners in Time (Alphadream)
- Animal Crossing: Wild World (Nintendo EAD2)
PSP (9 ports/remakes, 13 original)
- Ape Escape: On the Loose (Sims)
- Gretzky NHL (Page 44 Stduios)
- NBA (SCE San Diego Studio)
- WipEout Pure (SCE Studio Liverpool)
- World Tour Soccer (SCE London Studio)
- Twisted Metal: Head-On (Incognito Inc)
- MLB (SCE San Diego Studio)
- ATV Offroad Fury: Blazin' Trails (Climax Studio)
- Hots Shots Golf: Open Tee (Clap Hanz)
- MediEvil: Resurrection (SCE Cambridge Studio)
- Gretzky NHL 06 (Page 44 Stduios)
- The Con (Think & Feel)
- Ghost in the Shell: Stand Alone Complex (Japan Studio / G-Artists) published by Bandai
- Kingdom of Paradise (Climax Entertainment)
- SOCOM: US Navy SEALs Fireteam Bravo (Slant Six Games)
- PoPoLoCrois (Japan Studio / G-Artists) published by Agetec
- Ape Escape Academy (Japan Studio / h.a.n.d.)
- MLB 06: The Show (SCE San Diego Studio)
- Pursuit Force (bigBig Studios)
- Daxter (Ready at Dawn Studios)
- Syphon Filter: Dark Mirror (Sony Bend)
- Neopets Petpet Adventures: The Wand of Wishing (SCE Santa Monica Studio)
Nintendo 3DS (2 ports/remakes, 9 original)
- Nintendogs plus Cats (Nintendo EAD1)
- Pilotwings Resort (Monster Games)
- Steel Diver (Nintendo EAD5 / Vitei)
- The Legend of Zelda: Ocarina of Time 3D (Nintendo EAD3 / Grezzo)
- Star Fox 64 3D (Nintendo EAD Tokyo)
- Kid Icarus: Uprising (Project Sora)
- Mario Kart (Nintendo EAD1)
- Super Mario (Nintendo EAD Tokyo)
- Animal Crossing (Nintendo EAD1)
- Paper Mario (Intelligent Systems)
- Fantasy Life (Brownie Brown) published by Level 5