My cellphone is a Siemens S35i.
Having picked up a few tricks about how to make it more fun and more useful, I thought I'd share my knowledge with the big wide world.
 
So on this page you'll find info about: Hardware, Software, Logos, Ringtones, Covers, and Links.

• Hardware
  First, get some hardware that will let your computer talk to your phone.
  • Infra Red
    If your PC doesn't have an Infra-Red port, you can stick a gerbil in a USB port.
    • USB Infra-Red Adaptor available from MobTech
  • Data Cable
    Siemens make a data cable which should be available from any decent supplier; cheaper than a gerbil, but no where near as cool.
    
  • Pocket PC with InfraRed port
    Absolutely invaluable, and probably the worst marketed product in the world.
    It's all very well having your desktop PC talk to your phone, but it's not exactly mobile is it?
    

• Software
  Then you'll need some software to do the talking.
  
  • For the PC I use
    • Sx35CZ
      Also offers technical data, management of address book, and text message writing.
      The author doesn't seem to have a website, but you can download it from various sites.
      Czeck site (in Czeck & English)
      German site (in German, but lots of screen shots, and the obvious "Download")
      South African site
  • For the Pocket PC I use
    • PhoneMan
      Allows you to use your Pocket PC to write SMS messages, and change logos & ringtones.
      

• Logos

  Let's face it, you didn't keep the Windows wallpaper on your desktop PC, so why stick with the boring logo that came with your phone?
   
  Here's a few logos I've created. If you want to make your own, they need to be 101 x 43 pixel black & white bitmaps.
   
  Right click the image and select "Save Target As" (IE/Opera) or "Save Link As" (NS).
  Do not save the GIF image you can see on this page, you need the Black & White bitmap it links to.
  Do not click the images below, your browser will try and open the bitmap!
   
  

  • Eyes

    Estella Warren	Eva Herzigova	Farrah Summerford	Gail Porter	Helena Christensen
    Jakki Degg	Kata Karkkainen	Lisa Marie Scott	Monica Bellucci	Natasha Henstridge
    Rebekah Teasdale	TATU	TATU - Kiss	Yulya Volkova Юля Волкова

  • Misc

    Heidi Klum	Lotus Elise	S35i	B2 Stealth Bomber	Harrier
    Eddie Irvine Jaguar F1 car	TATU - Logo

• Ringtones
  MIDI format 0 files can be uploaded to the S35 as ringtones.
  The file must be monophonic (i.e. only play one note at a time), and the single staff needs to be on MIDI track 1.
  Click a link below to hear the ringtone; press Escape to stop it.
  To download it, right-click the required ringtone and select "Save Link As" (NS) or "Save Target As" (IE/Opera).
  • 99 Red Balloons, Nena
  • All The Things She Said / Я Сошла С Ума {Ya Soshla S Uma} by TATU.
    (The section where Lena sings: "Mother looking at me, tell me what do you see? Have I lost my mind?")
    Set Playback Speed = 7
    
    
  • Cecilia, Simon & Garfunkel
  • Ma L'Amore No — inspired by its use in the film Malena starring Monica Bellucci.
    Use with Monica's eyes above for a themed phone!
    
    
  • Mission Impossible
  • Not Gonna Get Us / Нас Не Догонят {Nas Nye Dogonyat} by TATU.
    
  • Promise Me, Beverley Craven
  • Robot / Робот by TATU.
    Set Playback Speed = 5
    
  • Stargate-SG1
  • The Chain, Fleetwood Mac — formerly used by the BBC as theme music for Formula 1
  • Thunderbirds — closing theme
  • Volare — inspired by it's use in an episode of Quantum Leap
  NB MIDI files don't seem to retain any rest you put at the beginning or end of the tune to stop it repeating immediately. Some tunes can sound a bit naff without a break, so you may want to add a rest at the end using the "Record Melody" feature in the phone (Menu 7 7, go to the end of the staff and press *, Options, Save).

• Covers
  Who said you can't get covers for the S35? This German company has clip-on covers that go over the existing case - it makes the phone slightly bigger but unless you regularly slot your phone into a car adpator, or have an already tight fitting case, it shouldn't be a problem. Cost about £6 plus postage.
  They also have full replacement covers (Gehäuse) in lots of pretty colours, but the procedure for fitting them looks somewhat complex, especially when it's in German. Fitting one would almost certainly invalidate your warranty, so don't bother until the warranty has expired. Cost about £18 plus postage.
  • Hot Wire Telekom
    Click on Suchen (Search) and enter "S35".
    If you find something you want click on In den Warenkorb legen to add to your shopping basket.
    Click on Warenkorb on the top menu to see your shopping basket.

• Links
  • Siemens Mobile
    It took Siemens a while to learn from Nokia that providing logos and ringtones was a good idea, but you can now get them off their website. You do of course have to part with your hard earned cash.
    
  • S35 World (in German)
  • Virgin Mobile
    My service provider, and a most excellent service it is too. Sponsors of the Jordan Formula 1 team.